I really much liked the skype for WP7. But, there are things which needs to improved.
1) I can't remove recent conversations.
2) I can't message on a phone number with my skype credit.
3) Skype don't run in background.
4) it would be better, if there is option to turn on the Flash while video calling.
5) Can't add a contact.
I hope in new version I am going to see all these things.