In a day where most companies have an application store for one product or another it should come as no surprise that Google, a long time innovater, would also want in on the action. According to numerous sites on the net it seems Lars Resmussen (@larsras) has more or less announced that a Google Wave app store is something which is inevitable - it's going to happen.
How an app store for Google Wave will work is pretty much just speculation at the minute but I would hope that there will be several tiers, including a free tier so that open source developers can show their wares to others for free. For the extensions that are in paid-for tiers this would generate more revenue for Google, possibly enough to offset some of the cost that the development and implemention of the required server infrastructure will have cost.
Once this App Store opens I think I'll have to write a few open source ones for people to use.
