If fifteen screens are busy reformatting images in Photoshop while another fifteen are downloading streaming video from the Internet, not a lot is going to happen in a hurry. Fortunately this level of loading is rare, but it does highlight the limitations of the system. It's not built with a room full of graphic designers or video developers in mind. Happily, the limitations of network loading and freedom match each other in most circumstances. Heavy users generally expect more freedom.
Light users are more likely to accept a loss of control.
Out of the two, freedom is probably the more limiting issue. Most computer users spend their time casually entering strings of text and accessing the Internet, and a Sun Ray system can deal with refreshing thirty screens under this kind of light usage. The set-up we tested at Carlton Online was lightly loaded and the system ran blindingly fast, including graphics rendering. Most PC user would have been astonished by the speed. That's one of the features that Sun hopes will sell the Sun Ray.