is 3.0.1 better?
3.0.1 is pretty solid -- honestly i love it. just do a nandroid backup, wipe thoroughly (i recommend a full /system wipe, /data and /cache, each 3X and wipe dalvik cache too) and give it a shot. it's totally worth a flash
mine runs smooooth on the stock kernel set to 125-800mhz on interactive. awesome battery life too.
so, short answer: nope
just navigate to "partitions" in clockwork and select each partition (/system, /data, and /cache...i wipe boot too just because it's on the menu lol), then back out using the power button, go to "advanced" and click "wipe dalvik cache" and you'll be squeaky CLEAN to install UD 3.0.1!
EDIT: oh, and for the sake of redundancy... nandroid backup nandroid backup nandroid backup! ... just in case you don't dig it (...you don't need to do three backups... i just did that for "effect" lol)
cleared that up for a lot of people -- i never had a time where i didn't have it checked because i knew about that feature from cm7, so i never had a period of time where i wasn't receiving my texts properly
3.0.1 was VERY fast and smooth for me, but it had too many bugs (and I wiped EVERYTHING multiple times before installing). I was losing texts, the gallery was acting weird, and programs would just close on me.
I switched to Liquid GB, and it's not as fast, but not as many bugs. I will probably be back when some of the bugs get worked out.
I had to switch back recently. 3.0.1 has is incredibly fast but I wasn't getting texts and pandora and other apps would close a lot on my cause GB is such a memory hog. Probably gonna wait another release and check that out but untill then 2.5 works great for me.