This has never, EVER happened in the history of man. Just sayin.
I disagree entirely, but to each is own. I carry my 7" tablet everywhere I go. I commute to work by bike and I carry it with me everyday. When I leave the country I leave my laptop at home and use the Galaxy Tab for storing trip photos on the
internal microSD card, doing photo post-processing, and for typing and maintaining my text (via bluetooth keyboard) and photo travel blog. I use
the internal GPS on annual month-long boat trips up the Inside Passage of Canada, tracking our every move, and I use it for navigation on off-road adventures and for every-day nav in favor of my wife's Garmin GPS, which we plan to sell. The biggest value of the micro SD card is the ability to store massive amounts of highly detailed USGS quad maps for backcountry navigation and NOAA chart maps for the boat. These maps take gigs of space.
I have used lots of navigation devices both for personal use and for surveying for work and I can't imagine a better tool than my $179 7" Samsung. I'm not sure how this would work on an iPad, but the $16 device below will read my camera memory, USB thumbdrives, external harddrives or virtually anything with a USB port.
I'm not an iPad hater, it's just too limited for my uses. And you can see why the 7" size is also perfect in my vehicle: