Hi Maria,
This is much bigger news than just another marketplace opening... :-)
I think your readers should REALLY read our blog post announcement to get a fuller picture of what this launch means for the Hypergrid-connected metaverse and for professional SL and OpenSim content creators as well.
http://www.kitely.com/virtual-...
As an aside, there were almost 1000 different product variations listed when we opened the marketplace this morning (in more than 700 different products). Clothes, for example, had 128 different product variations in the 79 products you mentioned.
It is also worth mentioning that the other multi-grid marketplaces you mentioned can only deliver to a few preconfigured grids that install some software on their end (modules and/or inworld vendors). Kitely Market, on the other hand, will be able to deliver to users of any hypergrid-connected grid without requiring grids to set anything up. With Kitely Market you'll be able, for example, to start a freshly downloaded version of sim-on-a-stick and have export-enabled products that you buy delivered to your avatar.