No, it's probably not going to run very well on a 3+ yr old lower-end machine and netbooks are definitely out of the picture... Like I said, it's slow, sometimes too slow on my laptop. I haven't tried it on my workstation yet.

The other annoyance is lack of custom-ability/hotkeys/keystroke shortcuts, but it is (supposedly) aimed at home-owner joe types? I am used to professional grade software that lets me configure it exactly how I want. So I am not sure if this is good or bad considering the market. I have been harping on Adsk for over a year now regarding the lack of a mouse zoom direction option in Fusion and this carries directly over to 123D. I hate the default SW and Inventor zoom direction.