Hi all,
To those that are asking if the vaja cases are worth the extra $$$ the short answer is YES!
I haven't gotten my iPhone yet (in the next couple of weeks), but I've carried my Treo 650 in a Vaja iVolution case for the last year and can attest to the quality and level of protection these cases provide. I'm a computer technician at a school district, and I'm constantly crawling under desks/tables hauling around computer equipment. My Treo sits in my thigh pocket and hasn't gotten dinged up yet. I hate to say, I've also dropped it a couple of times (I can be clumsy), but the phone has survived the experience of gravity with flying colors.
The cases might run more than your average rubber/plastic case... but they'll protect that $400-500 phone of yours a lot better (IMO). Plus, they look great and will last forever!!!
Cheers!