The global user statistics for the different platforms shows that iOs, Symbian, and Blackberry are in decline while Android is gaining users. Samsung has about a 5% niche market that is also gaining.
With a smaller market for Samsung, sellers can gain more installs with less competition. I designed and developed an entertainment/lifestyle app that has 10k installs in 3 weeks.
You can play the demo of the entertainment app Abracadabra here or install here if you have a Bada device.