There's a new Apple tablet "leak" pretty much every day, and most of them are complete and utter bull. This rumor, however, comes from a close Apple contact that BGR seems to trust. They've got just about the best track record for rumors, so these tidbits deserve at least some consideration.
The tablet's multi-touch gestures are described as "out of control". Apple has been patenting different gesture-related controls for a while now. It seems likely we'll see some of the crazier (read; more innovative) ones make it to the iSlate. The tablet is supposedly powered by an "incredibly fast" ARM CPU and is said to run on the iPhone kernel.
In fact, the iSlate is the reason why we haven't seen an updated build of iPhone OS in a while. The OS has been revamped to include the tablet, and Apple didn't want any code that could expose their new project to leak out just yet. The slate's model number is K48AP, which will be easy enough to check up on when the product gets unveiled later this month.