Xmarks extension for Dolphin Browser HD.
There is a free two week trial available to all users.
When you swipe or go to Menu -> Bookmarks, Dolphin shows you your bookmarks toolbar. Be sure to tap Bookmarks at the bottom to see all your folders.
If all your bookmarks appear as one long list, go to Menu -> List view to view them in folders instead.
Dolphin doesn't currently support sub-folders. To view your sub-folders, we recommend downloading the standalone Xmarks app from Android Market.