[jameszhang]

Neat idea. I would expect there to be a link to each freelancer's portfolio/personal website before ever considering clicking on "Hire Me".

[ianwootten]

There is. Immediately under the freelancers name, if they've added it. Here's mine: http://availability.is/for/niftydigits

[notahacker]

The ability to filter by more specific skills, rates and locations (including possible future locations...) would also be very useful