There are other provisions that will balance it all out. For example, many people owning those houses, $200,000-$400,000 are hit with the AMT rules but don't have enough income to be able to hire the really smart tax accountants/lawyers that could get them out of having to pay out more than they should. So depending on how they balance out the tax reforms, it could turn out to be a pretty big "win" for almost everyone. People with really big houses will get nailed, and I think this will spark an inevitable correction in the housing market as all those higher income people who own several investment houses dump them when they don't get the tax benefits they used to provide. My prediction is that we'll see a correction in housing prices mainly at the top end of the housing market, a few wealthy people will gripe about losing their favorite tax shelters, but the overall consolidation of the tax laws will result in most people paying about the same with half the tax form pain and less risk of penalties from doing your taxes wrong.
I think darn near ANY tax reform is good, even if it costs me a few bucks because I'm too honest. The tax system is too complex and that rewards only the lawyers, accountants, and those wealthy enough to hire them.
edit - I almost forgot... I blame boosh.