I’ve just implement user accounts for my DnD Map Tile Generator. You can register for an account using your favourite OpenID provider.
At the moment you can use an account to buy credits that allow you to access new board styles. There’s only one style there to start us off, it’s very much a Beta test at the moment.
I’ll be adding more styles, and more features (special options, saving of favourite tiles and more). They’ll only be available if you have an account, so register and enjoy the benefits.
I’ll drop some free credits to the first few people to register, or to anyone who can report a bug to me, either in comments or directly via e-mail.