Historically, third has meant failure (and anything below that meant horrible embarassment and possibly bankruptcy), though some would say the Cube is debateable. We're at the stage where the market's big enough that third will likely be plenty for this generation, as long as it's not Sony taking that. If Sony gets third, they failed.
Nintendo has made (and continues to make) most of its profits from the portable industry. However, they have most likely been profitable with their console efforts for the most part throughout both the N64 and Cube.







