Samsung likes to play the tart when it comes to a mobile OS, but the Bada Developer Challenge for its in-house environment shows where its affections really lie, with a top prize of $300,000. That compares with the £2,000 that Samsung was prepared to give to the best Android application while promoting its Galaxy handset. The two grand is just for the idea and is UK only, but the comparison still shows how much more important Bada is and how much Samsung is prepared to spend ensuring it succeeds.