>"None of them managed to sell enough devices to keep a profitable business."

Nokia managed it with the N900 and the N9, the only reason they didn't continue is they lost their bottle and sold out to Microsoft.

If you were fine with "open source" on those Nokia devices, you should be happy with "open source" on Android.

Also as a former employee I can tell they didn't sell that much units, specially when compared with Symbian devices.