For a while now, T-Mobile’s offer for a USD $1 a day prepaid Sidekick plan. This meant that unlimited web browsing, sms, instant messaging, and email. The dirty secret is this worked for all handsets – including an unlocked iPhone… until this weekend (8AUG09). A small group of Howard Forums [link] users confirmed that T-Mobile has cut off application and browser HTTP access.
I’ve been a closeted HTC Magic (T-Mobile G1) user for a while and though I have an iPhone on AT&T, I wanted to have a backup network. Dependent on WiFi to be of any use, I had to unlock my G1 and put it on the AT&T network. Although costly, AT&T is currently the only US Carrier that would allow GPRS/EDGE on a prepaid account.
T-Mobile is now opening up a dialog on prepaid data plans in its forums [link]. Now, I would like to see a cheaper plan for data, but I don’t even know what would be equitable to me and T-Mobile. I’m willing to pay $1 a day, but for only the days that I use my phone. I’m not against paying for a block of data, i.e  (n GB for $x) but it doesn’t seem fair that people who have contracts enjoy far cheaper data rates.
I don’t see T-Mobile coming coming out with a plan any time soon, but at least I can get back and running at 25¢ a minute per call, and .02¢ a KB for data.