Interesting question. Even more interesting responses. As much as I think that it would be cool to have my own Persocom,
I can see several problems with the concept of making Persocoms real.
My first piece of evidence is the Second Rennaisance scenario (anyone who's seen The Animatrix knows what I'm talking
about). Humans are generally a selfish species who focus only on their own needs; and as a result, there will be those
who will use Persocoms for perverted means. (Remember the fable of the Nightingale...) Also, an artificial lifeform, not
just persocoms, posesses a certain level of intelligence. Because of this, A.I.s will only function for human servitude
for so long before the AI becomes sentient (self-aware). Because of mankind's selfish pride, they will respond to the
sentient AIs in the worst way possible. The end result will be either the abolition of any intelligent technology, or a
possible AI uprising.
The other problem I can see occuring is with the design of the Persocoms themselves. I speak from the United States,
where females have, and are still becoming more verbal in feminine rights. (before anyone says anything, I am a male who
agrees with most aspects of the feminist movement.) I'm not trying to step on any toes, but I doubt that most women
would be thrilled about the marketing of machines built in a female appearence. I can forsee at least two outcomes in
this situation: Either the feminists will demand the development of male Persocoms (for those who've seen the entire
series, is there such thing?), or they will find a way to completely ban the marketing and the development of Persocoms
in general.
In any case, if I had a persocom of my own, I would teach it to assist me in my technical work (I tend to do alot of
work on PCs...).