iPhone Webapps and iPod Touch Webapps

HyperOffice

HyperOffice allows business users to access Outlook mail and view & share contacts, calendars, tasks and documents right from iPhone.

Currency Converter

Monitor the currency exchange rates for all major currencies.

O2 Wi-Fi Hotzone Finder for iPhone

The O2 Wi-Fi Hotzone Finder for iPhone owners in the UK (but don't get too excited).

Readdle

A simple way to access your doc, gif, html, jpeg, pdf, rtf, txt, xls files with iPhone and iPod Touch.