Are there Android phones that cannot be used for app development?

Is it true that ANY Android phone can be used for App development 开发者_StackOverflow社区and testing?

I'm trying to find some inexpensive off-contract hardware for development and testing of our Apps. I've found some devices I can buy New with No Contract for $150 to $300 (like the HTC Aria or the Huawei Ascend). Is there anything that would prevent me from using these devices for USB debugging and app testing? I guess I'm concerned because I've read how the HTC Aria has been locked down by AT&T to limit applications. I suspect this won't affect me loading apps using ADB, but I'd like to be sure.

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Yes, you can use any phone for testing applications via the Android development tools. This includes the HTC Aria of what I've read. You can read more here: http://developer.android.com/guide/developing/device.html

And it is not true what Sam Dufel wrote. A developer phone have messaging and phone features. It's just as any other ordinary unlocked phone. The only difference between the dev-phones is that they have unlocked bootloaders so you can install and customize your own Android-system and install it. It is rooted by default.

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Google actually sells development phones - after you create a developer account, they give you an option to buy one of a couple different models. You don't get any messaging / phone features though, obviously.