1. It was never directly developed by Apple. It was a third-party product whose developer Apple bought and re-named Claris, then FileMaker, Inc.
2. It's a technology. A format, a wrapper, a player, an authoring solution, a plug-in, several things. Digital cameras and camcorders use it as well. What you're thinking of is the QuickTime Player application, it's merely one component.
3. How about putting it like this: iPhoto isn't worth much without integration with the rest of iLife? You can use your photo library in iMovie, iDVD and even GarageBand (podcasts). You can use songs from iTunes as soundtracks for your iPhoto slide shows. In itself, iPhoto doesn't really do much. Its key value is in its integration.
4. The iTunes Store is at least breaking even, nobody seriously believes that they sell a billion songs at a loss each. I think iLife, even as a paid upgrade, harldy breaks even, if at all. It's more like a marketing tool to sell more Macs. Putting its parts, with the sole exception of iTunes, on Windows PCs wouldn't help Apple's bottom line at all. Its potential "halo effect" is highly questionable.
7. Well, if the user isn't satisfied with the software on Windows that's available for preparing and managing the photos, Apple can always tell him or her to get a Mac for that precise reason. Trying to bribe users to switch by offering free lunches that make their stay on Windows actually more acceptable (and thus eliminating a reason for switching) is still not something I'd find very likely.
1. FileMaker is spelt FileMaker, and it wasn't an application by Apple.
2. QuickTime is not an application.
3. iPhoto/iLife is being touted as one of the reasons to buy a Mac over a Windows PC. If iPhoto/iLife were available for the PC, Apple would lose some of the Mac advantage.
4. iTunes means a constant revenue stream for Apple. iPhoto does not. It's doubtful if the photo printing services it sells make too much money.
5. Maintaining a Windows version of iPhoto would cost Apple money.
6. Apple TV doesn't need iPhoto. If the slideshows are impressive on Apple TV, the point has already been made: Apple products can make beautiful presentations.
Is Apple Planning iPhoto for Windows?
Is Apple Planning iPhoto for Windows?