Except that you can build apps that are optimized for ICS and that degrade nicely for older versions / less capable devices.
That's how smart developers always operated. I remember when Id's Quake 1 first appeared ... I could play it on a 2 year old Pentium processor on MS-DOS 6.22, even though Windows 95 was capturing the headlights.
You can start taking advantage of ICS APIs today. It's more work because you have to test and workaround older versions too, but the thing that differentiates Android from other frameworks is that it was built with degradation in mind.
That's how smart developers always operated. I remember when Id's Quake 1 first appeared ... I could play it on a 2 year old Pentium processor on MS-DOS 6.22, even though Windows 95 was capturing the headlights.
You can start taking advantage of ICS APIs today. It's more work because you have to test and workaround older versions too, but the thing that differentiates Android from other frameworks is that it was built with degradation in mind.