First of all, have all nga flip on the device plus Foreflight, Wingex Pro, and a Garmin aps on it as well. My assessment after having used it for a couple months is viable and highly effective. Filed twice from the iPad without talking to FSS without a problem. That's with minamal effort, exposure and (admittedly) knowledge on the capes of the device. Looks like a lot more posibilities that are yet untapped. Those of who have flown/fly acft that are less than 40 years old have compatible outlets on the ACFT...also, if you use common sense, you'll charge it up before each flight you plan on using it on. Seems like a no brainer. Flew last sortie using it exclusively for checklists, pubs and approach plates. Up until Dec 2011 I didn't see the point...now I'm a convert...