We're 2 1/2 years old and learning to write already! All I can say is WOW! I used to teach 4-5 year olds who had trouble learning to write letters (and even recognize them, for that matter)!
And since they've known all their letters since before 2, we've also been working on reading, starting with the sight words I and see. I figure if they can recognize a letter, a shape, an object, etc. then they should be able to recognize a word. Right? The book we like right now is "I See Colors," and each page says "I see (color)." They are learning to use picture clues to help determine what the sentence says. The page that says "I see red" has a cat painting everything red (Owen's favorite page, of course). They are very good at one-to-one correspondence (pointing to each word and saying it) which will also help when counting objects.
It is just amazing to me to see them doing all of these things that my Pre K students were learning, and many found challenging. Again the other day Owen put together an AB pattern with the giant black and red checkers at Cracker Barrel. I have a video of this but it seems to be taking a while to upload to YouTube.