Yea I use all of those plus Spanning Sync, but it's kind of a hodge podge to get it all working (I have a Mac which doesn't sync 2 way with some things). It would be nice to have 1 desktop program for it all. I used Missing Sync for BB and even BB's Desktop Manager worked well before I switched to Android from my Storm. And as much as I like using the cloud, I still want and need to have my computer involved on many levels.
What I would love to see Google do would be an itunes like program but using amazon for music and videos. You could even buy audiobooks (audible) and ebooks(kindle) from it. They can do the cloud stuff just as well but for the amount of content it would be managing it would prefer a desktop app.