I developed for Android some lightweight apps last summer as a hobby, got HTC Tattoo & I was dissapointed by the OS (1.6).. I switched to iOS dev & I'm planning

I developed for Android some lightweight apps last summer as a hobby, got HTC Tattoo & I was dissapointed by the OS (1.6).. I switched to iOS dev & I'm planning to buy 3GS or iPod Touch for testing.