Old dumbphone Nokia brick. Had one of the early androids, battery life was brutal. I've heard they have made huge strides in this department the last couple of years, so I've been looking for a good deal on a Galaxy S3 for the last few weeks. If I do snag one I'm sure I will miss the 6 days of usage i can get on one charge on this thing.
I have an Android HTC Evo smart phone that I just use for development because Sprint forces you into a rip-off data plan if you activate a modern smart phone. So I use my old Windows CE phone for telephony. Before that I had a Palm OS phone, which I liked better.
The HTC Evo is a nice smart phone, and I would use it as my primary device if I didn't have to sign up for a data plan.
However, I checked other in the poll above because my primary Android device is the Google Nexus 10 with an amazing 2560x1600 display -- I wish I could buy a monitor with that resolution -- and 32 GB storage.
It's a great platform. The only downside is that the battery is not replaceable, so it has a fixed lifespan. Hopefully, some will create a hack to replace the battery within the next few years.
I honestly cannot understand why anyone would want a piece-of-shit IPad when there exists such awesome alternatives. But then again, Apple is a religion. You can't expect rational thought from its users.
@Dan8267, check independent cellular providers. Sprint uses CDMA, which is also available via MetroPCS and others. The "prepaid" services tend to be cheaper than postpaid, but Telnamobile offers T-Mobile GSM at cheap postpaid rates. No need to pay for the big names' advertising budgets.
Regarding Apple products, they have the best OS for people who want their devices to work without too much effort. People really love Apple products. Personally, I prefer machines that I can take apart and tinker with, but people love their Apple products like they love their pets. They wouldn't think of cutting open the dog to replace his bark, and they wouldn't think of taking apart their iPhone to replace the memory chips. Apple users are often nice people, they just don't have the same interest in taking stuff apart and they are willing to pay extra for something simpler.