Hi Jim,
Haven't asked about purchasing a remote - if it is even possible. The unit is working fine at the moment, but I am unable to recalibrate. If it continues to drift, it could eventually become unusable, but who knows how long that could take. I have used my iPad in the cockpit and while it is certainly no ifly screen, it is 'ok' - I have a screen protector on mine which helps a bit. With the news of the iFly app forthcoming, and the hope that we will eventually be able to send data from the iPad to the ifly, I will keep the iFly mounted for the foreseeable future. My reason for the swap was because I use the iPad for flight planning, and it is annoying to go back and to input the data into the iFly (as well as Skyview and 430). Looks like the iPad app may solve this issue!