1) Cubase 5 + with tons of VST plugins
2) My old but reliable Nokia doesn't have that possibility
3) Composing, mixing, mastering mostly electronic music but sometimes some heavy and rock
4) For me as a PC user VST plugin support and clear user interface. Easy to handle and fast way to get down with your inspiration.
5) All I want and need is in Cubase
6) Nope, after all these years with this product I still learn new tricks every now and then!