OilCan lets you customize any website by inserting JavaScript to change the website and help it reach into the Android world using intents.
Using intents to call other Android apps is really powerful, and opens the door to all sorts of web-based apps
Sky Widget - Weather forecast widget for Android-powered phones. It offers multiple configurations (both a 2×1 and tiny 1×1), and updates four times daily with the latest forecasts. You can also insert multiple widgets to keep track of the weather in different locations. And tapping the widget brings up a detailed forecast for the next few days
GroupHome is a program that organizes all the apps you've installed on your phone. It automatically groups together apps using the categories shown in Android Market. This grouping approach helps you find apps faster. You can long-press on an app to uninstall it or view its details
TunesRemote helps you remote control your DACP-compatible desktop or laptop media player, such as Apple iTunes. It lets you easily browse your albums, including full-text search from a distance