Here's a link to the VPN client. I've never used it but it says Cisco so you might be in luck.

http://scriptkiller.de/cisco_vpnc_with_nokia_770.php

The price point is hilarious. (read: not.) In Canada, the N800 is over $400... in the US it's down to about $200... and our dollar is worth more currently. What bugs me is that Nokia manufactures the tablet themselves, it's not like they bought for a certain country at a certain price months ago from a third party supplier.