XSEED has confirmed that an online DS version of Ragnarok is in development and is bound for the US this Winter.
Following on from the PC version, which has 3.14 million users in America, the game aims to bring a similar feel of customisation and exploration - but letting players connect and play with others wherever there's a wireless internet connection. You'll be able to team up with two other friends, take on the Tower of Mirages (which has over 50 floors) and battle through randomly generated maps and more complicated scenarios.
The game's being developed by GungHo to be published on the DS later this year.