What will I miss? What will I love? I really like everything about my phone aside from the phone part

I mean it's not horrible, but it's more of a PDA than a phone. I've been with my trusty 6700 for ~3 years now and I have a dying "R" button and my earpiece has about had it (can barely use it as a phone without it being on speaker).
I was wondering if anyone here has used the ereader.com book reader on the touch (since it's vga) and how it looks?
I also use SiriusWM5 almost daily while at work to listen to Howard Stern. I assume that it and/or the StarPlayr work well on the TP?
Those are probably the two most used applications I have outside of the calendar.
I plan to go check out a TP tomorrow and see if I like it, and if I do I also *plan* to go the Sprint phone convert -> verizon deal. I currently have unlimited data with my 6700 so I believe I am an ideal candidate for the "switch"
Any thing I can/should look out for or consider coming from my 6700 would be greatly appreciated.
Thanks.
Dallace