Some useful features i use actually with OsCommerce and wish to find in Magento:
(some of them have already be discussed)
- bundled products: x basic products (lets call them slaves) creates 1 meta product (lets call him master), the quantities of the slaves set the quantity of the master and inversely.
-stock management with manufacturers and automatic reorder : ability to select a manufacturer, generate, edit and/or send an order with all products from this manufacturer that are under their minimum stock level. In my experience, this feature could save hours of work each week for a shop with lots of differents small products.
-allowing backorder should be set to a product level, not at shop level.
-pdf generation for printing shipping labels is cool.
-ability to easily split commands (one product is in backorder and will be for some weeks, the other is available, lets split the command , charge and send what is available)
Anyway, this project seems to grow well, and i really enjoy the work that as been done ! You guys will rock the market!