Smartphones are the money making devices atm.
These companies are all chasing the same dollar right now. I am not the least bit surprised that Apple/Google/Microsoft/Samsung are doing the dance in court battles over and over.
The problem is that all their devices are all some what decent. Making them ALL very profitable.
That is the exact thing THEY ALL do NOT want.
They want one device to rule them all. Well... that's just not going to happen anytime in the near future regardless of how many lawsuits are filed. And if one of these companies are given a monopoly on smartphones, so be it. Will suck for a while for the consumer, but it will force creativeness in the other companies future devices.
Just my two cents.