Developing for WP8 with only WP7 device?

Question

I don't understand from today's WP8 event: will I be able to develop apps working on both 7.5 and 8, having only one 7.5 (7.8) device for testing?

I don't like WP emulator, even though it's better than iOS/Android ones. I know that in Visual Studio 2012 it will become even better. But still!

Answer 1

Current devices running Windows Phone 7.X will be able to be upgraded to Windows Phone 7.8 but not Windows Phone 8.

If you want to use a feature that is specific to WP8 you'll either have to wait for hardware or use the eumlator (when available).