The B-29, unlike the P.108, actually did stuff.
If you mean
more stuff (a lot more stuff with greater successes), I agree ...
The final development of the P.108, the P.133 prototype, was almost complete by the time of the Armistice (8 September 1943), but the program was dropped soon afterwards and the aircraft was never finished. It was designed to have a lighter structure and several improvements in performance, which were partially influenced by a captured B-24, with a potential speed of 490 km/h (304 mph), 6 × 20 mm and 4 × 12.7 mm (.5 in) guns and a bomb load of up to 4,800 kg (10,600 lb).
Operational history
P.108Bs were deployed in the Mediterranean and North African theatres and first saw action in an unsuccessful day mission against a destroyer on 6 June, releasing 10 160 kg (350 lb) bombs. The aircraft were effectively used a few weeks later, with a night bombing raid over Gibraltar on 28 June 1942.
Gibraltar
The first operation to Gibraltar was almost a disaster; out of five aircraft which set out from Decimomannu in Sardinia, one (MM.22004) was forced to return due to engine trouble while the other four bombed with 66 100 kg (220 lb) and six 250 kg (550 lb) bombs. Three of them, short of fuel, were forced to land in Spain, two of which (MM.22001 and 22005) crashed or suffered some damage in forced landings. The third (MM.22007) landed in Majorca, a former Italian base in the Spanish Civil War, and thanks to the Spanish pro-Axis policy was quickly refueled and took off from Palma de Majorca for Italy. The two others remained in Spain: MM.22001 crashed on a beach when it was approaching Valencia airport and was written off, MM.22005 suffered minor damage and was stored at San Javier air base but was repaired and tested by the Spanish Air Force. Several other missions were launched until October, which resulted in some damage and further losses. An attempt to change to SM.82s was an expedient (as was the P.108, expecting more from the future P.133).
For a chronology, there were sorties to Gibraltar (without the endurance problems that dogged the first mission), during the night of 3 July (MM.22601 failed to return), 24 September (MM22004 and 22603), 20 October (MM.22002 (written off during an emergency landing after engine failure on takeoff), MM.22004, 22006 and 22007) and 21 October (MM.22602, destroyed during an emergency landing at Bône in Algeria, and two other P.108s), when the "peak" was reached.[12] Each of these missions, involving one to four aircraft (15 sorties in total), was unsuccessful and resulted in around 33% losses. The results were poor, with one Hudson and some artillery positions destroyed on the ground in the first, "big" mission and further unspecified damage in the others, despite intensive long-range mission crew training between 3 July and September. On 28 October, MM22007 force-landed in Algeria on its third sortie, making in total at least 16 sorties with one aircraft missing, two lost in Spain, two lost in Algeria and one lost in Italy.
Algeria and Africa
Following the Allied invasion of French North Africa, codenamed "Operation Torch", more losses were sustained when these aircraft flew missions over Algeria and other African targets. The Allies had over 160 warships and 250 merchant ships in the region. The Luftwaffe had 1,068 aircraft in the II and X. Fliegerkorps, the Regia had 285 aircraft in Sardinia of which 115 were torpedo-bombers. At least three were downed over Africa in this series of raids, for the most part claimed by Beaufighters. Nonetheless, in Algeria they struck targets in Bône (now called Annaba), Algiers, Blinda, Philippeville (now called Skikda), Maison Blanche and Oran.
Some ships were damaged by P.108s in the latter and Algerian raids and over other targets they destroyed some aircraft. These bombers were the only ones capable of flying the 2,000 km (1,240 mi) to Oran. The 274 Squadriglia had only eight P.108s and with them performed only 28 sorties in eight night missions, during a whole month. Three were shot down by night fighters, which on only one occasion were repelled by the wing turrets. Two P.108s were shot down by 153 Sqn Beaufighters in the attack over Algeria's port and the last of these missions was flown on 20 January. Serviceability dropped to one or two aircraft and so with the need for refurbishment, the P.108s returned to the mainland.
Sicily
The final action took place over Sicily, when the 274ma was reinforced up to the basic force of eight machines. They flew 12 sorties against the invasion force between 11 and 22 July. Losses included two aircraft destroyed and two others badly damaged, mainly by Beaufighter and Mosquito night fighters. Only one ship was damaged - this closed the career of 274ma and the P.108B.
The last of the 24 P.108Bs ordered was delivered in August. Of these aircraft, six were lost to enemy action (three over Algeria, two over Sicily and perhaps one over Spain), four to accidents (including the one involving Mussolini) and three to forced landings (one in Algeria and two over Spain).
http://en.wikipedia.org/wiki/Piaggio_P.108The bombers I am personally most enthused about the idea of using them in AH are the Tu-2, Ju188A-1 and H8K2.
No one can fault enthusiasm but the Ju188 is much in the same boat as the P.108. I'm glad to see support for the Tu-2. The H8K2 would obviously require more than just plane modeling since the game itself would have to be coded for seaplanes (which I'm not opposing, just saying it's a more complicated wish than the SM.79 or Tu-2).

p.s. the B-32 actually did stuff, as well. It was just a cold war.
