Will this work? If I buy my iPhone here and then get a Swedish SIM card? The phone is like 800 dollars outright, so if I can't use it in Sweden I'd sort of be really cut that I'd then need to buy a cheap phone in Sweden. :S Also, things like 3G, would that work in Sweden too?
Yes it will work - as long as you buy an unlocked iPhone 3GS/iPhone4. Unlocked means a phone that is not locked to a particular provider like Vodafone or 3. You can easily test that Down Under by inserting SIMs from different providers in the same phone. If both work they the phone will work with any SIM. Or simply ask if phone is locked or not.
Oh yeah, for those who have iPhones, is it worth the money?
No. The most over-hyped product ever. Well, apart from iPad. A perfect example of a 'post-ideological' ideology.
I need to buy an iPod touch, and I will need to buy a new phone in Sweden anyway if I don't get an iPhone... so I thought if I get one I could kill two birds with one stone so to speak.
I'll notify RSPCA.