I'm trying to keep things as light as possible as we move into beta in terms of adding more code. Speaking for the core team, we haven't been good about consistently fixing known bugs before adding new code, so I'd like to make that a focus in future releases. Boiling down the items mentioned above, I came up with the following document that will probably serve as an initial roadmap for beta development:

Things to keep an eye on: (not necessarily bugs, but might be)

• Installation process
• Shipping quotes
• Workflow-ng conditions and default configurations
• Anonymous checkout and user account creation
• PostgreSQL support
• Make sure reports are being generated correctly

Known bugs to iron out:

• Supporting a required zone field when a country has no zones
• Allow items to be added to the cart view form
• Creating new accounts for redirected payment methods
• Caching bugs for anonymous users (like the cart block)

Features still in the works:

• Recurring fee support
• Review and include more Views integration
• Adding encryption to CC numbers in the database

Items in need of some contributed love: (best served up as modules or patches for review as we can't seem to find the time to get to these)

• Support for $0 order total checkout
• Address/profile integration
• Support for non-JS users (I like that idea about instructing users how to turn on JS for a contrib module)
• Attribute enhancements, specifically images per attribute and dependent attributes
• Product kit enhancements

I'm probably missing stuff here, but that's why we have an issue tracker (or two). For the time being we have opened up the Drupal.org issue tracker to specifically handle bug reports/patches (no feature or support requests, please).