Personally, the more I'm learning about the later iterations of WinMo 6.5 (such as the various builds of 6.5.3), the more content I am to wait for Vzw to release the update, provided they are delaying in order to proffer something like 6.5.3, 28004+ with the bottom start menu and the more finger-friendly improvements.
The only TP2 I've seen other than mine with vzw is my gf's Tmob. As big a percentage of the smart phone market the TP2 is carving out, remember that the overwhelming majority of mobile phone users are using generic flip phones and Nokia clones. So we are still a big fish in a really small pond.
Not to hate on Sprint, because I know there are surely some areas out there where service is great and there are still a handfull of people who actually have sighted a friendly Sprint customer service rep, but aesthetics of the TP2 aside, there is a reason for the mass migration away from that carrier. That said, I do like their commercials and I most certainly love their NFL 2009 app that I found cabbed here on PPCGeeks.
