Let the hive mind of Engadget get that for you.
"I'm looking for a solid state drive, around 32 to 64GB, for use in my web server. The drive will contain my web sites and the operating system, either Windows Server 2008 R2 or Ubuntu. Large storage is handled by a separate RAID array, so capacity is not an issue. Rather, I am looking for the fastest, longest-lasting, and most reliable drive under $150 that is suitable to my application. Any thoughts? Thanks!"
No way for me. This makes great strides in convergence, but I want a full smartphone. And that price point is nuts. I'll believe the soft keyboard when I see it but just don't have much hope for something with no tactile feedback and teeny areas for big thumbs. I'll also believe the battery specs when I see them. As suck as iPods and smartphones are with battery life, try combining them. Blah blah blah nothing you haven't heard.
But for the size/bulk crowd out there, remember that you can compare the iPhone to your favorite gizmo or small object over at Sizeasy - http://sizeasy.com . The iPhone is one of their stock comparables. Google your favorite gizmo's specs, enter the there, and compare. It's really pretty slim. A bit taller than I'd like, but plenty slim. I think it will pocket nicely, at least sans case.
Wonder how the weight will feel in, say, a front shirt pocket? Hope it ain't 3G ipod heavy. That thing is a ground magnet.