I'm really considering switching from Straight Talk to the T-mobile prepaid $30 deal, but two things are stopping me:
1) No 1900Mhz service map. Right now I have no clue what areas are 3G and which are EDGE, and it seems like nobody else does either. If my office was covered by 3G here in Bethesda it would probably be enough for me to switch since wifi and EDGE would work fine near home. Nobody can tell me what the local coverage is like on the 1900 Mhz band, though.
2) No micro SIM cards for prepaid. Yes, I know you can trim the normal cards (and I have a cutter somewhere). It just strikes me that they aren't really serious about BYOD if they can't get this detail right. I may stop in at one of their retail stores next time I see one and ask if they can sell one, but they don't offer them online.
1) Coverage should be close in bethesda - if not already live. Check out user submitted http://www.airportal.de/
2) You can get micro-sims in store. Plenty sell them on Ebay as well.