Your company? There's an app for that.
Despite the strange post title, the excellent Jason Kottke starts to think along the lines of MFDs (Multi-Function Devices), which I keep writing about.
There is still something to be said for specialised equipment though, but harping back to the idea of just 'good enough' I wrote about last month I think most people won't want the extra expense of multiple devices.
What will be interesting is when the PC makers realise that the desktop is on it's way to becoming obsolete to 90% of their user base (nettops already point the way) and so start making portable devices. Then Apple will get the competition the phone manufacturers seem incapable of.