New phone / Wondering options

[fmwyso]

I am particularly interested in getting a new phone for a reasons...

First of all, I would like to mess around with the various sdk's as I know of a friends who have told me I should at least try it out (IE: coding android apps).

Secondly, my current phone sucks at texting because it is just ancient in every possible way (sgh-t339 in case you are wondering).

Thirdly, most importantly, I already pay for services on my phone so that I can text/call people... So I might as well use the upgrade option and pay a little extra to get a much better phone so I can do those things better.

So anyway, I have a few questions about various things...

If my school offers wireless connections to laptops, does that mean that it also provides support for phones (as in, do most phones support wifi connections)? Do phones ever make it impossible to use native support for things (like emailing for example) if using wifi (as opposed to the phone service's data plan)?

I currently use T-Mobile because, at the time, their family plans seemed to be the cheapest. If I am going to get a new phone anyway, is T-Mobile still a fine choice for unlimited talk+text? What about unlimited data (second question, because I honestly don't even think data would be worth the cost for what few things I will use the phone for).

I only really hear about Android apps being made... do all phones support android the same? If not, what SDK do other phones typically use; and they are as robust as Android?

What are typically the reasons people use unlimited data on their phone? As opposed to simply using wifi or etc.?

Android vs. Windows phone... Based on the uses I will show below, could you recommend one or the other for me?

• Calling (Which seems to be the least likely thing for people nowadays to use their phones for)
• Texting (probably with pinger)
• Any app that lets me flash card using the phone (believe it or not, one relatively big use for me)
• E-Mail
• Random messing around with provided SDKs to make apps.
• If it is easily possible, I will probably use it to watch videos.

Thank you for your time, and sorry if I wrote too much :P.

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