I would assume that if one tried this that Sense UI could be restarted with the same procedure; but I know what happens when one assumes...

I have an old Eris that is getting a little long in the tooth, but can't see spending $300 on the latest and greatest (just yet, anyway). If I could get down to the vanilla Android OS and still have all the functionality - minus the Sense stuff, of course - I think I'd be able to hang on to the phone a bit longer.