Umm yea, thats throwing me a curve ball, My phone works as a computer that I can take into the bathroom.................
But If I cant get to the toilet from the bedroom (well that might be TMI) then the toilet in the bedroom wouldn't be much help.
But, to answer the question, the computer phone cost $200 per montth, 3 phones with the data package for 2 years.
IDK, the computer, cause the plumbing and materials would be $1000 , just a guess.