T-Mobile G1 Hands-On
Google and T-Mobile demo'd a number of a third-party apps that have already been built for Android. They were impressively robust applications, especially considering that the first Andoid phone hasn't gone on sale yet.
Shop Savvy is a simple, yet very powerful application. In a nutshell, it attempts to put all product information on the Web at your fingertips wherever you go. It does a darn decent job of it.
It's incredibly easy. You start the app and simply aim the camera at a bar code on a product in front of you. As soon as it can read the bar code, it automatically looks it up on the Internet. In a moment, it comes back with an array of options, including pricing and reviews of that product. There's even a price-compare tool that shows new and used prices from all over the web, so you can see if the price at your physical location is competitive before you part with your hard-earned cash.
Here is a video walk-through of how Shop Savvy works:
For the eco-conscious, Ecorio is an application to help you actively and precisely manage your carbon footprint. Now, instead of going through a whole process to estimate your footprint using a web-based tool, you can have this application track your usage for you, using a few simple parameters and GPS.
What it will do is automatically track your trips in vehicles. Do this for a few days, then you can browse your trips, and Ecorio will show you alternate ways to make the same trip using mass transit. It will even show you the cost, estimated time, and give you step-by-step directions, complete with interactive map.
You can then track your carbon footprint over time. Ideally it goes down over time, but it's unlikely it will ever reach zero. If zero is your goal, though, you can actually buy carbon offsets directly from the application. It will tell you how much you need to buy, and it even uses Google Checkout, so the process is completely streamlined.