Will the iPad support VPN (Virtual Private Network) connections / protocols?
Definitely yes. My iPad supports this connection and I can also use it on other devices. I am currently using https://www.vpnunlimitedapp.com/en/downloads/ VPN Unlimited which has high speed and a big variety of different connections. I used to use free VPN service but it has a poor connection and the ability to connect only one device which is not reasonable for me. Free VPN also has a lot of cons rather than pros, so I exclude it. It also possible to choose the right connection from a big variety of different countries that are available.
Apple has not mentioned whether or not the iPad will support VPN connections. iPhones already have VPN support. Since the iPad will run iPhone OS 3.2, it’s likely that VPN support will be included. The iPhone and iPod touch support the L2TP, PPTP, and Cisco IPSec VPN protocols. iPhone and iPod touch devices running iPhone OS 3.0 or later can use VPN Proxy configurations and VPN On Demand.