Skype released version 4.1 for Windows today however they forgot to update their servers & download links.

All Skype website download links for version 4.1 only download version 4.0.

Best to wait until Skype gets this sorted out.

Update: Skype download links for 4.1 are A-OK now.

Screensharing is the best new feature.

Skype 4.1 MIA