iSlate: Apple Tablet Rumor Roundup: Apple's Tablet Ships in March
So it looks like the Apple tablet will be called the iSlate. Gizmodo kindly rounded up all the Apple tablet rumors that have been buzzing around, and they point to some sort of Apple press event in January to announce the release of the it-might-be-called-iSlate, which, according to the Wall Street Journal, will ship in March.
What will it cost? Well, this is Apple, so the short answer is "a lot". Apple doesn't do low-end, though they tend to cut their prices when sales slow down, or when they've released a new version of an existing product. The Apple tablet rumors suggest a price of around $800 to start with.
Overwhelmingly what "evidence" there is points to some form of Slate. Not only did Apple register the domain iSlate.com through an intermediary to keep it a secret (discovered by Mark Gurman), they've trademarked it through a shell company called Slate Computing (signed for by Apple's Senior Trademark Specialist) and registered domains and trademarks in Europe through their usual IP law firm, utilizing their standard secret trademark practices, last used with the iPhone.
(The videos attached are mock-ups)