An article today in Business Week Online talks about an upcoming announcement from Salesforce called “AppExchange”.
According to the article, AppExchange is a marketplace for On-Demand applications that will be managed by Salesforce.com. It sounds like these are all apps that would be hosted by Salesforce.com (not 100% sure about my interpretation there) and could be trialed and purchased through AppExchange. I presume that these will all integrate with Salesforce.com, but the article indicates that they will also host apps that have no interaction with Salesforce; stand-alone On Demand apps. Salesforce will be seeding AppExchange with some apps they built when it goes live.
Sounds like an interesting idea that will open up the door for a lot of innovation in and around the product.