It is nice to see Gartner recognizing innovation and creating a category called cool vendors. Never heard of this before.
Gartner defines a cool vendor as a company that offers technologies or solutions that are: Innovative, enable users to do things they couldn’t do before; Impactful, have, or will have, business impact (not just technology for the sake of technology); Intriguing, have caught Gartner’s interest or curiosity in approximately the past six months.
In this case, it was Raining Data, for their product TigerLogic Clinical Trials Data Services.
Source: Google Alerts on XML