IMAP support for GMail?

I'm one of those people that need my e-mail to be available in different computers, so I ended up being a huge fan of IMAP. I use it for my work e-mail addresses but not for GMail, since it's not supported.

When it came to my attention that GMail was now offering IMAP support to some users, I "ran" to the GMail website to check it out. Sadly, I was not one of the few chosen ones to have the experimental IMAP support.

Anyone out there was lucky enough to have it? Care to comment on it? Does it work as expected?