Using phone's computing power to assist in PC's calculation Is phone cluster or cluster with PC and phones possible?

I was thinking if recoding MOSIX or using any other program/software to connect your phone with PC and let the PC use phone's computing power in calculations is possible.

I know that it won't boost it a lot, but mostly just for an experiment.
A modern smartphone that runs Android is a general-purpose computer. Yes, you can run a single or cluster of smartphones to do general-purpose computation. 

A smartphone is probably not the best tool for this job. Phones are expensive because they are optimized for size and power considerations. A desktop or laptop computer will be give you significantly more computing performance for the same cost.