Unfortunately I agree with Mike (on site) on his comments.

Consumer apps used to compete on functionality - now everyone can mostly do that part.

Design (both graphic and interaction) is where companies will compete for consumers.

Bump has needed a TON of help in the past and even does tdoay (even with their iphone app, http://www.iwebsnacks.com/wp-content/uploads/2011/02/Bump-2....).

Please - start with a new logo.