TidBITS has a nice write-up on the two 3G data plans from AT&T.

Some key points:

• The plans auto-renew each month. If you want 3G data access for just that month, you *have* to cancel before the next billing cycle.
• When you sign up, you create an ID that’s unrelated to any existing AT&T & iTunes account.
• Any account that’s unused for 2 months gets deleted (so you have to create it again after that)
• Streaming video will eat up your 250MB plan *really* quick.

Here’s another tip: If you’re not using the 3G connection, turn off the ‘Cellular Data’ to save power:

(image courtesy TidBITS)

Here’s an easy way to test your iPad for dead (or stuck) pixels: http://www.theipadguide.com/content/ipad-dead-pixel-test-how/7171269

Dead pixels occur sometimes on LCD displays (it’s not specific to just iPads; any LCD can have them).

If you notice some on your iPad, set up an appointment at your local Apple Store to get it looked at.