[JZR]

Couldn't you open a new line in order to test the Android phone (EVO 4G, I assume)? If you didn't like it, it wouldn't cost you anything. If you liked it and kept the phone, you could port over your number and cancel your SERO line, assuming you're out of contract. If you're not out of contract, cancel the line for a full refund, then upgrade your existing line.