RIM has announced free code signing keys for the BlackBerry PlayBook and smartphones today.  In the BlackBerry Tablet OS SDK, you’ll be able to sign the apps you build (with the latest version).  You can download the latest version here to get the ball rolling.

To start signing applications, make sure you register with the RIM Signing authority by filling out their web form.  It is free but RIM holds $1 on a credit card to verify it is valid.  You get your buck back after your credit card company processes the transaction.  Not so sure what that’s all about but that’s what’s required.   You can read more about it at the BlackBerry Developer’s Blog.

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