Should i download ios7 beta. Even thou i don't have a uddid?

I have iphone 4. Will my phone get blocked or anything like that. And how many glitches are on the beta

If you don't have your UDID registered, you'll get your phone stuck in activation screen.
Beta doesn't have any major glitches reported as of now

Not many glitches now that they've gone through a few betas, but you absolutely need to get your UDID registered first. It's a major headache if you don't.http://www.udid.in/ is probably the cheapest option.

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