I have been researching the application and waiting for the 1.0 final release, it’s a cool coincidence for it to come out at the same time Adobe Air 1.0 is out!
That’s from their blog:
eBay Desktop 1.0 is now available for download! This free application is an alternative to the eBay website – you can use it to search, browse, bid, keep track of your auctions — all the things you use the website for when you’ve got some money burning a hole in your pocket (or in your PayPal account).
The 1.0 release contains lots of bug fixes, performance enhancements, and small changes to features in response to user suggestions. We also recently released a beta including international support, and the 1.0 has lots of fixes that should make using eBay Desktop from all the international eBay locations much better.
eBay Desktop uses Adobe AIR, and we are synchronizing our 1.0 release with the 1.0 of AIR. The installer will take care of downloading both eBay Desktop and Adobe AIR, whether or not you have installed one or the other in the past.
We have worked on the project for nearly 2 years, and I am very pleased with the end result. We have lots more enhancements planned for the coming weeks and months, but this the most important milestone so far. The eBay Desktop team from Effective UI has worked incredibly hard on this, and I’d like to thank them all: Sean, Greg O., Greg C. Jason, and all the project alumni: thank you! And thanks to all the eBay members who have provided great suggestions, ideas, bug reports, and words of praise. I hope that we can continue to provide great user experiences that make the eBay marketplace more fun and dynamic, and help connect more individuals through the simple act of commerce.
I personally think that this tool will be great for buyers more than sellers on eBay, but with some practice on it, I think it will be a mini research tool for sellers.