Had someone ask me what I did to get the data working on this phone. This might help some others…or might not, anywho…
I am using goam.com but the ip for goam that I use is 208.200.67.150
On my Galaxy s2 (unlocked bell/virgin) version i9100m, under the "Mobile Network", I set the phone to "WCDMA Only" mode and then exited to homescreen. From there, I went to the phone dial menu and entered "*#2263#", (this brings up service mode for the phone) and selected "WCDMA BAND", from the next screen I selected WCDMA 1900, pressed the phone's menu key, selected "back", and then menu key again and selected "end".
Then the little H+ showed up and I smiled. For whatever reason the auto-select band would not work on this phone of mine but setting it to the 1900 setting got data working nicely. Speed tests with it vs my HTC Evo 3D using the same server with the Speedtest.net app consistently have the Galaxy S2 coming out ahead on download and upload. Not by much but it's always ahead…how accurate speedtest.net is, I do not know.
+++UPDATE+++
Went into the service menu today and selected WCDMA ALL and it's working fine. Upon initial setup this did not work, now it does. Go figure.