Today I set up my new laptop with Windows Vista - a "dry run" for Beta 2, because I want to use it as the primary OS on that machine. Part of the drill was getting my UMTS card (a Merlin U630) up and running.
So I went out on the Internet to search for a solution. At first, I tried dialing manually using AT commands, but it turned out that initializing a Merlin card isn't exactly easy-peasy. So I decided that a thorough forum search was in order. Thankfully, that search turned up a great piece of software (onlinekosten.de Community to the rescue).
What I found is MWConn (looks like that this time the international audience is out of luck, at least at the time of this writing as the software is German only). It does support the Novatel card, allows for dialing (make sure you check the default connection that is generated, at least my provider is using a different dial-in number), gives feedback on UL / DL traffic you generate, plus signal quality information. Way cool & saved my day!