Question concerning the iPad-Can the iPad be used for certain computer programs?

I am a practicing physician and I am considering of buying the iPad for my workplace. However, the main deciding factor for my decision is if the computer program Cisco VPN client can be used on the iPad. The reason for this is I use this program to file my patients' charts and other information. So if this could be done, then I find the iPad a great buy and a better alternative to the conventional laptop.