I wish Google would force manufacturers to stop using the 320x240 resolution. The browsing experience is very poor on such a resolution, unless you're using Opera Mini perhaps, and I imagine it's hard for developers to refit their apps for such a small resolution, too, as even menu text will take a lot of space on that resolution.
I also wish they mandated everyone has at least 512 MB of RAM in their phones, and at least 2 GB for the OS and 2 GB of app space. That way upgrades can be ensured for years, and people, especially regular people, can actually install more than 5 apps without running out of space (and no, App2SD doesn't count, and it's almost useless). And while they are at it, they should also stop supporting the ARMv6 architecture, now that the ARMv7 Cortex A5 and next year Cortex A7 are going to be used.
If Google wants to bring down the hammer on manufacturers, it should be for stuff like this, that ensures users of Android devices, even at the very low-end, get a pretty good experience, otherwise they'll always think Android devices are crap, after their first cheap Android smartphone. They don't want that kind of perception to affect the Android brand in the long term.