This limitation seems very bizarre on the iPhone 4, which has 512MB of memory. (I'm actually pretty annoyed that MobileSafari doesn't have configurable caching

This limitation seems very bizarre on the iPhone 4, which has 512MB of memory. (I'm actually pretty annoyed that MobileSafari doesn't have configurable caching in general; I'd happily give up a gig of solid-state storage if it meant that web pages always stayed in memory once loaded.)