Can i connect to another ipad using bluetooth?

for what purpos?

this is a list of what the ios devices support in terms of bluetooth

http://support.apple.com/kb/ht3647

Depending on what you want to do, the answer may be yes, or no.

If you explain what it is you want to accomplish we may be able to provide a more accurate answer.

Just now that the iPad does not support file transfer over bluetooth directly. Though there are some Apps in the App store that make this possible over different mediums.