Tomato has completed his translation of Mother 1+2 for Game Boy Advance, which should have a good number of you rejoicing. You can read all about the patch, and download it, by going to this page.
The main focus here is Mother 1. Not only has the script been translated in full, but tweaks to things like text boxes, menus, font readability, and more have been made. If there were ever a time to give this game a shot, now would be it.
As for Mother 2, only the menus have been translated, not the script. Tomato says it isn't really worth the tougher-than-you'd-think effort, though it's not entirely out of the question given enough time and/or money.