The bar for android hardware is still quite low and the prices still too high. Apple's technology innovations make this ever more clear in the doubling of tablet screen resolutions and faster processors. In a couple tablet generations, these slim computing tablets will surpass the capablility of entry level netbooks, thus killing off that market altogether since they can ultimately be the same product:
a tablet with 2-4gb of ram, 2ghz processor 1gb video memory could in theory run whatever o/s you wanted to including ios, windows, linux distros and android flavors. this is where the lines blur, think of a tablet that can have all these specs as a touchscreen netbook but the internals are half as thick.