Aviation Moving Map Display
Advantages: I purchased this tablet to use as a portable navigation aid in my 1946 Aeronca Champ. The P80's internal GPS receiver is strong and pulls down enough data to give 3D positioning within ± 7 meters (using the free Android software GPS Test). The moving map and operates flawlessly (using the free Android software Avare). All this without a SIM card. I'm EXTREMELY pleased with this product.
Limitations: None so far.