Did a quick search through the forums for "mobile", but there were too many threads to wade through.
Perhaps this is already in the works, but I would like to see OpenGameArt.org have a more mobile-friendly site/mode. The parts that are hardest for me using my small touchscreen, are the small submit/confirm/preview/edit/etc. buttons & check boxes. And even more difficult is navigating the menus. Touching a top-level button on the menu expands its sub-menu. But at the same time, confirms navigation to a new page. This makes it difficult to visit pages on the sub-menu, & near impossible for other items nested even further in.
I don't know that this is the best solution for the menus. But, I suppose menu items that contain sub-items could only confirm navigation if that menu is already expanded. E.g. the user has to touch the menu once to expand it, then touch it a second time to navigate to its link. I think this should only be enabled in mobile mode though, as the current system of hovering over a menu item to expand it works well for systems using a mouse/cursor.
Note: Sorry if I seem demanding. I know it can take a long time to integrate features & there is a queue of priority. I just want to get these ideas out there in case they are not already mentioned.