A MUST HAVE FOR VONAGE CUSTOMERS!!!
Vonage Talk is an open source program that allows Vonage customers to send and recieve calls from a device using the Vonage VOIP Service at no additional cost.
I would be VERY happy to support the developer of this program, as would many others.... I'm sure.
Vonage staff posted that you are free to compile for windows mobile.
Source Code (c++?) is available (under gpl) at
http://sourceforge.net/projects/vtclient/develop
I have watched folks request this program on this forum and others ever since Vonage released the code years ago. It makes even more sense today.
If you would also like to see this app, then please join me in pledging support to the developer.