I put my phone to EVDO-only because I thought my phone was having issues staying on EV, as it would go to 1X all the time. I read elsewhere on a post on howardforums that CDMA phones (specifically the Touch Pro and I guess now the Hero) need 1X to make calls and receive txt messages. Sure enough, when I put my phone in EVDO only, I could no longer receive calls or texts. So why, I wonder, is there even such an option? It basically becomes data-only. Anyone else experience this?