Talk about all your eggs in one basket!
-USB or network connectivity
-Printer
-Fax
-Copier
-Scanner
-PDF creation
-Scan to emai
-Document feeder
-Cordless phone base station
-Memory card slot
-PictBridge
-Synchronizing with a mobile phone
It might only work in Japan (I think the landline phone standards are a bit different there) but still, it would be an amazing chunk of technology to have in your home office.