( Engadget.com ) - Forget the MacBook Air: those folks seeking the absolute lightest notebooks on the planet know that Windows machines are still the only way to go, and Toshiba has proven that once again with an official 3G upgrade to the already impressive Portege R500. According to Akihabara News (which seems to be a little confused concerning the model number here), two new 12.1-inch, HSDPA-equipped configurations will be available this month: the ultra-lightweight (and ultra-pricey) R500-11J, highlighted by a 64GB SSD drive and impressive 1.72-pound package, and the cheaper, optical drive-packing R500-11I, which features the same 1.20GHz U7600 CPU and 2GB of RAM, but introduces a less appealing 120GB HDD. Pricing should be around €2,500 ($3,658) for the high-end 11J and €2,050 ($3,000 even) for the heavier 11.