As long as you aren't redistributing them. We also have these pretty maemo.org logos over here which you're welcome to use (and redistribute!).
So I can make one for me, but not share it with anyone else.. apart from your logo.
Hi! I'm Kathy and I'm a Maemo Greeter! Welcome.
Useful links for newcomers: New members say hello , New users start here, Community subforum, Beginners' wiki page, Maemo5 101, Frequently Asked Questions (FAQ)
Did you know Meego.com has forums too?