HTML5's Canvas tag: are we using it?

Dear Lazy Web (all 6 of you that read my blog in other words),

Are we still using the Canvas tag? I've been researching it, looking for a "cheap" way to do some simple graphics manipulation for Firefox-based browsers, and as I did I came across Apple pulling the patent card for Canvas. I remember seeing some radically awesome stuff done using Canvas but if there's a chance that it'll be pulled from the browser in the future because of the patent I'll be looking to use something else.

So, we using it or not?

PS: Blogger's fucked up Rich HTML editor doesn't escape HTML tags when you type them into the editor, so guess what happened when I posted this the first time?