That battery life sounds very impressive, but we'll have to wait for the actual battery tests.
Edit: Actually, reading more closely it doesn't sound that good.
Game: Approx. 3~5 hours
Video: Approx. 5 hours
Music (in stand-by mode): Approx. 9 hours
* Screen brightness default setting, Bluetooth feature off, headphones used
* Game, when not using the network
* The duration may change depending on the brightness of the screen, what content being played and if the network (3G/Wi-Fi) feature is being used or not
That battery life for the gameplay assumes that you're on the default battery setting (probably lowest or 2nd lowest then) and you're
not using WiFi or 3G. The variance probably comes from how graphically intensive the game is.
Add on Wireless drain and you could probably knock that down to 2-4 hours. Increase the brightness and it could go even lower...
Ugh! Those memory card prices suck (Not surprised one little bit)
Edit
Some PS Vita software titles may require the use of separately sold memory card for saving games
saved data while some software titles are capable of saving it on to the PS Vita card itself.
WTF?! Fuck this shit! I thought that all games would come with their own flash memory space for saving data on (like DS and 3DS game cards).
Ugh! So the Vita effectively becomes a minimum purchase price of $270 (since you
have to have a memory card for certain games) Now there's effectively almost a $100 difference between the Vita and the 3DS. Not good, not good at all.