Earlier quoted context omitted.
How long will people keep on buying MP3 players? Eventually, phones will be good enough to replace them 100% Also, will iPhone OS 4 be available for iPod Touch? I rather doubt it?
Apple have already stated that iPhone OS 4 will be available for the iPod touch, though only the third-generation touch will get multitasking. I'm not sure why you would have doubted it. How would it have made sense for Apple to exclude it from the new software release?
Why does Apple exclude the old iPhones?