I started on AT&T with a Razr, then shuffled to a Samsung A707 after 3 razrs, no waranty or help from AT&T and needing to buy a pay-as-you-go phone from walmart to use my SIM card in. After the A707 I had a run in again with AT&T's customer service, paid my contract cancelation fee, and dropped them faster than you can blink. I then switched to Verizon and had an LG enV3, which was the 2nd worst phone I've owned after the Razr. Dumped the enV and got a BB Curve 9330 which had great e-mail, calendar and I loved BBM, but it wasn't any match for the full screen goodness of a touch phone. I had a Droid 2 for a while, then eventually settled on my iPhone 4. Now I feel like I'll never own a different phone. It is everything I liked in all the other phones I had, plus it has things I didn't know I liked.