It seems like there should be since a large portion of iPhone users probably have Windows PCs. Though offering it only on Macs might be a small factor in someone switch over to a Mac.
Thats Apples mission. They want people to go to the Mac.
Judging by the positive responses on this site, public opinion seems to favor this idea. But you never know - apple is very protective of their software and will not release to PC if they can have more gain by using this as a draw to buy Apples.
If this is the case, then why not make iLife for the PC? or iOs for windows mobile and andoid phones! /sarcasm
I hear that, I wish I could use iTunes on my PC!
The FaceTime protocol will actually be an open standard, so any company who makes chat software will be able to make their own FaceTime-compatible programs for the PC.
The reason the iTunes was made for the PC, because the iPod was so successful in its first two years as being a mac only product, that they decided to support Windows. If they didn't do that,. the iPod wouldnt have been so succsufll.
Facetime. if different. So if iLife.
One thing you also got to remember is, they would need to make face time work with the vast amount of webcams out there. With the macs, iPods and iPhones, the camera is made by apple so you will know it will work.
Doesn't really matter as there are now other options like Yahoo and Tango.