Oh well. 3G. I only know that I stopped using my 3G modem some 8 months ago, it was so extremely frustrating. I had maybe one day per 3 months without packet losses (as measured by ping). Packet losses completely kills services like Ajax, due to the TCP/IP stalling which is the consequence of packet losses. It would take forever to send a single mail from gmail, and sometimes I had to just give up after an hours frustration.

It worked OK in the very beginning, probably because I was one of the first ones in my area to even use 3G. Now, I just keep paying my monthly fee without using it (until the contract runs out).