This is a test of the WordPress.com spell checker.
You have to turn on the Visual Rich Editor to use it. I hate the rich editor but I am turning it on for this test – the blog piece says the editor has been upgraded so maybe it'll be better.
It doesn't flag non-capitalised "i"'s I notice – i.e. it sees no problem with "i went to the shop to see if i could…" – other than that (and the fact that it doesn't recognise the word WordPress) I like it! And the toolbar does appear to be a tad better. Hopefully the toolbar will be better in the next version of the downloadable WordPress too – for now it is waaaaaay too slow.