I see invitations have been extended both companies have been having a lot of difficulty gaining traction in the market. Each having solutions that have failed to gain acceptance for more then 3 years. For the first the primary complaint has been it is difficult to use and not at all intuitive. They may have fixed that and they do have a big company behind them. The second invitin company continues to have problems with a scalable and reliable solution and licenses the Kodak viewing engine. Reliable information says that Kodak has abandon deelopment and will son abandon support for this viewing and collaboration technology. Also be careful to insure that you select provider that does not suffered from funding problems. You need a stable company that is ableto support additional software and new product development.