I'm looking for a freelancer that knows what he/she is doing when I talk about usability.

Expected quality is:
http://www.tearoundapp.com/
http://www.powerybase.com/bills/
http://idesi9n.com/phone/

Overview:
- 1 iPhone App Design:
- PSD only (buttons etc layered properly)
- 4 screens layout + 1 splash screen
- Home tab, 2 tabs with custom table layout, 1 tab for settings
- App icon
- 1 Single page web design to show the app.
- PSD
- HTML/CSS integrated. (JS implementation optional)

Application details will be given to the winning bidder only. Designer will have full comfort of designing the layouts using the usability practices, as long as they make sense. Reply with previous projects links/designs that demonstrates your good understanding in usability and user experience design.