Just spoke with Anbu at Zoho Creator Support and he gave me a little heads up on the Beta features being released in the next couple of months.

• Sandbox (the ability to develop and then push to live production)
• New live UI (a more flat more modern user interface design. With a lot of javascript goodness I hope)
• New form builder (haven't heard about this one before)
• Page Builder (this will allow a better HTML page design experience)
• Page builder - Customer Portal (not sure about this one)
• Deluge for Zoho Invoice (you'll be able to do some workflow when invoices are raised)
• Sheet2App to import data. (Not sure about this one. Anyone?)