Desktop class applications

I wonder what Steve Jobs meant by this – he seemed to be a bit cagey (in yesterday’s keynote) and talking within the limiting confines of an an announced but as yet unavailable product. Can this thing write documents? On this jailbreak iPhone 4 website it looks clumsy to write more than a few words in an email. Portable computing? I’m not convinced yet. But there again it’ll be at least the end of the year before we see them over here.