The offical botcon site has been updated to include the following.  You can go to www.botcon.com for more info.

We have a few NEW details about BotCon 2007!  The hotel for BotCon is the Westin Providence Hotel in Providence, Rhode Island. The show dates are June 28 - July 1.
BotCon is not in the hotel computer system, but will be soon. DON'T CALL YET! There will be a discount code which we will pass along as soon as we get it from the hotel.

With this Botcon happining imeadatly proir to the release of the Transformers movie, this is one convention to attend. 

-Knightwing-