One, it's a bad deal to ask Android owners to trade for Apple products. There's a sort of bias for Android here. Two, the N1 is pretty much a collector's item for the moment until other carriers begin selling it or you can purchase it from Google to develop on it. Three, I would see no problem if they were trading you an iPhone 4 or a Motorola Droid or some other reasonably equal phone. Sadly, the 3GS is inferior to the N1 in hardware specs and you're pretty much stuck with iOS 3 if you want a stable platform whereas the N1 has significantly improved with each update. My advice, stick with the N1 until you get an equal or better phone on trade.
