I use PHP-Fusion http://php-fusion.co.uk as a CMS, but after using Opencart I was struck by how much better it is done in all aspects. The multi-language support is great (works alot like the CMS PHP-Nuke... aye, yet another CMS), and the clean user interface system yet very advanced administration system leaves really nothing to be desired... Besides a better CMS implementation...
Please do not misunderstand me, Opencart must always BE opencart, but maybe there should be some more options for the "plain static" user pages. In this way the Opencart system can incorporate a more "stand-alone" independant shop system without the use of external pages.
As it is now there is not much room to present a product in more than *one* way... We should maybe have a system that help to promote more "live" products to be presented in a more "flexible" manner...
Example: How do members in a 18th century society sell their services (representation, lectures etc) in a less "itemized" shop-way... Here its either ZERO in price or a BASE price where it should also be a "interest application" feature on products too, like this:
Product 1: Joe Johansson, I have 1hour lectures in 18th century dances, contact me with an offer
Product 2: Anna Anderssen, I learn how to cook 18th centure cakes, I take from $30 to $90 depending on the star aligments...
oki, anobe tow examples on products that are hard to "sell" (implement) now due to their hard-to-categorized nature...
Also, support for MANY users in the same Opencart might be good so everyone can register and sell their products there
Opencart also might need a PERMANENT delete on images that one delete internally as there is lots of images from DELETED products still in the directory

Else... Opencart is the BEST... Thanks for making it!