HTC should just give you the option to just install stock android if there running into memory problems. i bet you could find better alternatives to there sense UI on the app store
I really didn't like Sense slowing things down so I installed CM7 but I do miss the Sense widgets. Maybe they should just offer the widgets and get rid of Sense.
Updates will maybe come in 2013 - that's why I've said goodbye to HTC. Had a Desire, now I'm back with Sony Ericsson and getting both Gingerbread and ICS on my Xperia Mini Pro