Here's an interesting thread discussing air pumps. One of them is similar to the Exped design and works with other mattresses called the Instaflator.
http://www.whitneyzone.com/wz/ubbthreads.php/ubb/showflat/Number/25704/Searchpage/1/Main/2649/Words/air+pump/Search/true/Re_air_pump#Post25704
I splurged on the battery powered model at 2.3 oz for when I backpack with my wife and need to inflate 2 NeoAirs. I have an abundance of hot air (gasp blow) so I can inflate one (gasp blow) without passing out (gasp blow) but the second one (gasp blow) makes me so light headed I become an air traffic control hazard (gasp blow) and I prefer to have my wife save her breath for more important things (blow gasp ). :)
