I took the plunge and installed this Beta on my Beta my 8830.
Messed around with it for a few hours and went back to 4.2.2 (I didn't find anything wrong with 4.5 but I am going to upgrade to a Curve and I don't want 4.5 to interfere the switch device wizard.)
I think it's pretty cool, the HTML email was nice change (not perfect but it was still awesome), Voice Notes!!, Doc 2 Go Thank god, the Browser looks very nice as well very noticabe difference and I could watch YouTube!!.
Can't wait for the official release. (If Only I didn't lose all my tests inside of Cram during the upgrade
4 Cisco tests with a bunch of questions
)