GetGlue has recently launched a check-in app for blackberry. It is still in private beta mode. This follows the release of Android and iPhone apps which also allow you to check in and share.
With the explosion in the check-in culture GetGlue has gained lot of popularity. The amazing thing about GetGlue is that apart from checking in; you can also like, dislike and also post reviews. All these can be shared on twitter and facebook by the click of a button.
An interesting and fun feature of GetGlue is that the more times you check in and rate the more stickers you earn and once you reach a certain number of virtual stickers you can have a batch of real stickers delivered to your house.
You can apply for the BlackBerry GetGlue private beta and check it out. Hopefully this should improve the check-in experience of the user.