Seems like every day there is a new whatnot from Garmin. I've read posts that describe a 3 year old system as "legacy". Garmin 430W's are "ancient". Reminds me of the early day's of the PC. Every year something new came out 2X faster, and was the must have. Settled out after a while, and you replace a laptop now just because it's cheaper to than repairing the old one - not that it's that much faster than your old one. Surely this aviaonics upgrade curve will someday be similar. It is just a head scratchier that you can spend more $ inside the cockpit than the cost of the plane, and in a few years it's obsolete. It's a matter of processing the information, so why not a PC / tablet like device that just has dedicated software that can be updated as needed?