Definitely a lot to digest, so I look forward to trying out some apps and workflows. I'm happy to connect via twitter, and if you need a beta tester for any eventual blogpost, then I'm more than glad to help out.
I think a focus on just one style makes sense. For me it's definitely more in the groovebox category, even if there is still multiple aspects to it. I think there are always the 2 topics of "how do I make nice sounds" and "how do I build that up into good tunes/patterns/songs". Maybe drums could even be considered a separate topic.
Personally I also want to get to grips with FM synths. For the composition part I have to say I tried and failed at trackers (renoise), which made me conclude I needed something more visually intuitive, and tacticle when it comes to manipulating the parameters. I'm eager to see how well a touchscreen works for the latter.
By the way, if you know of any place to hire good online tutors, I would like to know about it!