OK just tried it out.

The applet looks really great. But there are still some bugs. It's quite unstable.
- adding a contact to a group will sometimes crash the application
- the applet should IMHO be a standalone app, Because at this moment when MyContacts crahses the applet is removed also.
- It would be great to be able to add contacts without a thumbnail to the contacts group. So give it a default icon with a name...
- It would also be great to allow adding a specific number of a contact to the speeddial in the applet (and if so allow for adding several contacts twice (but with different phone numbers)... I really miss the quite normal speeddial functions as used on eg symbian devices (E90)...
- Perhaps double clicking for call is not the best idea, perhaps long press is better?
- The contacts list is not sorted, and clicking on the keyboard just searches for the first character in a name, it should use a incremental search.

Keep up the good work, this could easily grow to be one of the most usefull programs on my N900!!