no problem. i routinely pass through with 2 computers. I occasionally get asked questions. If they look used, no big deal. I had the customs guy pick up the computer and look for wear on the keys. The computers i bring are big boy gamer computers or macbooks though.
I was a little worried about my wife's and mother-in-laws phone i had repaired in my pocket, but they didn't ask questions about that. I suppose if you brought in more than like 2 phones you might get into some issues.
Now that one time my wife asked me to bring 19 Stanley thermoses... Well that was not a good day.