Ubercart Marketplace adds multiple seller support to the Ubercart module. It includes a series of modules that limit the access to Ubercart functions for sellers. Additional functionality is added to support this from both a marketplace seller's point of view and the store administrator's view. Sellers (with the proper access permissions) gain the ability to view their products, track and fulfill their orders, and monitor their sales reports. Store administrators can view seller reports based on seller order statuses and seller sales. Support is included for Paypal Mass Payments, with which an administrator can automatically pay his/her sellers for custom periods.
The initial port to D7 is mostly complete, but requires further testing before release. Note in particular that mp_file is not yet ported. Please try out the other components from the 7.x-1.x-dev branch and report any issues.