Answer: not concurrent but still snappy feeling. I have to wait longer than on the desktop because of no concurrency, but I mind less than I would otherwise because I can watch the pages zooming around.
Really? It's definitely not on the iPod Touch: other windows do not finish loading in the background, they wait until you swith to them to load. If you're right, I wonder why Apple made it different on the iPhone.
Mmh. My iPod Touch is second gen. I guess older iPhones don't load pages in the background and third gen iPod Touches probably do. It seems likely that Apple enables background loading only on devices with more memory (or maybe, on faster nes).
Answer: not concurrent but still snappy feeling. I have to wait longer than on the desktop because of no concurrency, but I mind less than I would otherwise because I can watch the pages zooming around.