What would you do with the domain

http://thestoreconnection.com

Have it from a previous venture, with a friend. No longer needed.

market mobile APPS maybe?? ... don't know if that's something that gets sold, but it's what came to mind

Maybe use it as a shopping aggregate, with ebay, amazone, etc.

Yep, I'd probably be looking at retailers, maybe implementing RSS feeds. You could monetize through paid placement or advertising.