Widget powered commerce is an area that has long interested me - see my posts on Adgregate Markets, ThisNext, Kaboodle, Cartfly, Zazzle / CafePress, Edgeio, MPire, and ThisNext.
I just learned that eBay has partnered with Widgetbox to allow eBay sellers to convert eBay RSS feeds to widgets.
This is a baby step to be sure - companies like Cartfly and Adgregate Markets are being far more aggressive about functionality within the widget itself and are focused exclusively on commerce, while Widgetbox's RSS to widget publisher is a bit more general purpose.
But you can bet that eBay will be tracking store propagation, click throughs, and conversion from this new project. If things go well, we may see more movement in this area.
This is also a nice distribution win for Widgetbox - I consider their RSS to widget publisher ("Blidget") to be the best out there, and apparently eBay agrees with me.
Here's a sample widget.
