It's a shame that they whitelisted such a small selection of titles (on 360).
I think that's more of a licensing things really. Some of those old games had really wierd diels especially for music rights.
I never understood why music publishers care so much about licensing for old games. Are they worried people are going to put on GTA3 to avoid buying a couple songs? It makes more sense to me that playing old games would encourage those song sales.
Before your comment I thought the more likely reason that Microsoft qualifies games is to reduce the amount of development and support effort needed for their emulator. Even Halo 1 struggled to get some good framerates, IIRC.
That’s the reason why some games keep going in and out of Steam. Especially console ports such as Alan Wake.
At least it’s easy to patch out if you have a homebrew-enabled 360.
I'm curious to know how well unsupported titles work.