I fit into this category. I was always a windows PC guy. I grew up with windows PC's, and became an advanced user.
When I started using smart phones, that was my first experience with Android. When I bought a first gen 10" tablet running honeycomb, I saw how Google's services were synced across devices, and I really liked that. It was great having my schedule synced across devices automatically.
So when my PC motherboard died a few months ago, I didn't replace it. Now its just my HTC Evo V, and my Nexus 7 as my only computing devices. It's worked out OK, I'm able to most of the things I could do on my PC with my Android devices. I do miss the maturity and reliability of Windows on PC, though. The general clunkiness and "adolescence" of Android can be rather frustrating at times. If it weren't for Google's smart integration of their services, I would have run away a long time ago.
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