This would definitely be preferable. But I haven't come across a viable CF card based WiFi solution. I already have an Eye-Fi SD card which works great in my 5D MKIII's SD slot. But those inserted in a CF card adapter don't worked too well. So, what are you using?
I use the same method: Eye-Fi card in a CF card adapter. I cannot say that it works 100%, but it's fine for interior or still life photography I think. If my notebook is close (about 2 meters) to the camera the transfer speed is about 15-30 sec per picture. Sometimes the connection lost, but it's easy to reconnect. So it's not the perfect solution, but I like it. I hate cables. And I just cannot use my digital back tethered on MacBook Air without repeater wich means more and more cables. On Phase One P backs you can use the battery when you use the back tethered, so any kind of firewire port is good for you, but on the aptus 22 the firewire port is under the battery, so it's only usable with powered firewire port. So this method is not for me, I prefer the wifi solution.