it has a micro SD-card slot
No, it doesnt but you can get a lg optimus case, sd card and stylus for I think £23.99 at carphonewarehouse
To transfer apps to an SD card on an LG Optimus T P509, go to the "Settings" menu and select "Applications." From there, tap on "Manage Applications," then choose the app you want to move. If the app supports it, you'll see an option to "Move to SD card." Tap this option to transfer the app to your SD card. Note that not all apps can be moved to the SD card.
you don't you need to get a micro sd card
yes the 16gb micro sd card is compatibale with the lg km900
depends on which model but most of them does.
micro sd
in a different phone
where does the sd card go
Putting pictures on a SD card is easy to do. All you have to do is go to the gallery and then click on SD storage.
get a sd card
Sd card
how to to top up an lg optimus