[afhsfsfdsss88]

The experience is laggy, as the top reply suggests. Your users which aren't doing much[should they even have their own box anyway? (No)] won't notice, but people who actually use the box[I was a quant in a former life] will hate you for it.

Dual monitors are also somewhat common nowadays[vital for actual productivity], how the heck is that gonna do over Comcast lines?

When the day comes[never] that we have ubiquitous/cheap bandwith, this idea is nearly practical. Until then it is DOA for "real work".

[noir_lord]

Even with ubiquitous/cheap bandwidth latency is still an issue (until we get Tachyon Display Port) in any real world scenario.

This might serve a subset well enough but got would it be painful (as you correctly observe) for anything who is hammering the machine.