Developer had been planning on taking a six-month sabbatical from programming this fall. But that left him with a pressing issue: what to do about , his $2 iPhone app that lets users follow lists of their favorite hobbies and interests. Recently updated to add new navigation buttons, the app tracks lists that measure everything from App Store downloads to popular Disney theme park rides.

According to Cambridge, Top-Tens runs on a client-server model, with the server side requiring weekly housekeeping. And then there was the matter of producing fixes for any issues that arise--Cambridge wondered how he'd be able to do all that while taking his break.

A friend offered this suggestion: Just sell off the app--source code, Web site, and all--to an interested buyer. So that's what Cambridge is doing--

"[It] seemed to be a quick and easy option," Cambridge said in an e-mail interview.

As of Friday afternoon, bidding for Top-Tens had reached £221, with the action set to close on Wednesday, August 12.