Mario and Luigi DS!

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According to a French site Mario and Luigi 2 is in the works… for the Nintendo DS.
Here is a translation

After a quick success on Game boy Advance in 2003, Alpha Dream gets back to work, this time on Nintendo DS with Mario & Luigi 2. The title will stay in the lines of the GBA version, but will make use of the double screen and the touch screen.

It’s just a rumor for now, but the Paper Mario/Mario and Luigi franchise is an obvious choice for the DS. Here’s hoping for some innovative good use of ‘tactile capacity.’

source: Jeuxpo via NDS Gaming