Yes it does, In 720p HD
Yes, the iPhone 4 takes video in HD.
iPhone 4: 5MP 720p HD Camera iPhone 3GS & Below: 3MP Camera
HD screen, Face time, flash camera, HD camera, wider sceen, longer battery life...ECT
Yes.
no No, the general idea of Apple upgrading the iPhone, was to make it BETTER. iPhone 4 has a HD Retina screen, can have a facetime call, Gyroscop, apple A4 chip.
No, you don not need one. You'll be able to record, but not playback in HD.
Yes, you do need to plug a HD PVR into a computer to record.
No. It was just an old rumor.
A Sky receiver will receive and record all programmes that the subscription allows. If an HD box is being used with a subscription that doesn't allow HD programming to be received, the record function will be limited to SD only. However, you can record the free HD channels as long as you have an active subscribtion to sky plus (without the HD pack)
No, but if you wont the HD quality and you wont to watch the T.V at the same time you will, otherwise you'll have to do without watching the T.V. But the HD PVR can record in SD as well.
It doesn't seem to; the TiVos that can record in HD have "HD digital video recorder" in the product name on the various sites, and this model doesn't.
The iPhone 4 camera has a 5-megapixel camera. The camera also has HD (720p) video recording for up to 30 frames per second with audio.