“XML-RPC Client is a free Cocoa-based developer tool for Mac OS X Tiger that allows you to access and debug XML-RPC web services from the comfort of your desktop.”

Incoming! – A Twitter search client for your Mac

http://incomingapp.com/

“Incoming! is a Twitter search client designed for power users and social media experts. It lets you cut through the noise and find the tweets that matter to you most — so you can follow your favorite topics or keep track of what users are saying about your company’s products.”

iPhone 3.0 Tethering

http://9to5mac.com/iPhone-3G-tethering

iPhone 3.0 Tethering

Quick instructions for how to enable tethering on iPhone 3.0

PandoraJam

http://www.bitcartel.com/pandorajam/

PandoraJam

Awesome sounding app that allows Pandora to act like a native app on a Mac. Growl notifications, stream to Airport Express, rip songs to iTunes.

Querious

http://www.araelium.com/querious/

Querious

“Viewing, searching, editing, importing, exporting, and structuring your data has never been so easy. With Querious, you can even open up raw CSV or Tab files in a spreadsheet-like document. Need to rename or reorder the columns? No problem. Searching for data is a breeze, and you can even convert the whole file to another format in a snap.”