The folks at Apple claim that they don't know how to build a netbook that doesn't look and feel "junky"...
Oh, y'all are *so* full of shit.
I spent less than $300 and I've got an ultralight, portable computer that is fun to use - and it worked with every peripheral I own, out of the box (including a 3G USB cell modem.)
Here's how to go ultralight and mobile in style, on the cheap:
Buy an Acer Aspire One (Dual-core Atom CPU @ 1.6Ghz, 8GB solid-state drive, plus SD card slot for another 8GB and USB ports for whatever you want to attach, street price about $275.)
Download and install Ubuntu Netbook Remix (you'll need a 1GB jump drive to do this most easily...)
This look like junk to you?
OK, go do this with OS X please.