Square has set up a website for its upcoming Game Boy Advance remake of the first game in the Seiken Densetsu (the "Mana" games in North America) series, Shinyaku Seiken Densetsu. The website, accessible here, has information about the game, several screenshots, and a few wallpapers. While the website is mainly in Japanese, the menus are in English, so they may well be worth a look.
Chief among the information made available by the website is that both Lil' Cactus and the rabbit merchant Niccola will be appearing in the game. Both characters made their debut in Legend of Mana. Square has also made several pieces of merchandise available through the website, but the game itself is still slated for a nebulous release of "Summer 2003".