nate:, I already have a Vodafone mobile data connection (though this may discontinue when Telecom launch their new data network),

So yes, you could get the integrated card you mentioned right now, as it will do atleast the same as your current card on Vodafone (unless you recently upgraded to their new 900 3G capable USB stick). It will then work on Telecom's new network too, and right now should work on Telecom's current CDMA network.

Forget EVDO, this card is not approved by Telecom which means you can't use EVDO and it would be difficult to roam to another CDMA network. If you can get it and you have the rignt antenna built-in go for an HSPA+ mini PCI express card (like a Sierra Wireless MC8792). Up to 7.2Mbps down and 2Mbps up.

850/2100MHz will get you most places around the world.

The picture on the HP website is also wrong. What they are showing is a 2.4/5GHz WiFi card made by Hon Hai Precision of China - lol