I’ve been a Skype user since 2004 when I first fell in love with the service. I used it a fair amount in college as a way to study for tests and work on programming projects with other classmates without having to sit in a library for hours. It was convenient to each code from home or dorm rooms, have a TV on, talk without a librarian getting upset etc. I can recall 7hr plus Skype to Skype sessions that didn’t cost anyone a dime.
I still find myself using Skype from time to time because it’s convenient, other people use/prefer it, and quite frankly, it “just works”. Not to mention a PC headset is often cheaper than one for your landline phone making it great for long calls when you want to be hands free and not use speakerphone.
iChat doesn’t compare either since it doesn’t support calling phones and isn’t nearly as good at dealing with firewalls and poor bandwidth, two frequent problems in college.
Skype for iPhone is rumored for next week. I expect it will only work when connected to WiFi and will otherwise be pretty similar to the desktop client. I’d also expect it to be in “beta” until the summer when push notification is released.
If it works, it will be awesome.
For anyone wondering: Yes, I tried Fring, and no it never worked for me. From what I can tell I’m not the only one.