It is likely that you will forget your wallet when leaving for work, but will you forget your iPod and Cell phone, I dont think so. Safa a MP3 player manufacturer in Korea has embedded T-Money payment card in it’s T1000 MP3P. T-Money card is a prepaid card which can be used to make purchases in shops, pay for tickets in Subway etc. It is the size of a visiting card and works wirelessly so you have to bring your card or bag containing the card in front of the payment counter and the necessary amount is debited from your card. The MP3 player with the embedded card works in the same way. You can recharge the card by connecting the MP3 player via USB and purchasing credits by accessing T-Money website.

The Safa T-1000 MP3 has 512 MB of Flash memory and you can check your T-Money balance on the MP3Ps color screen.
Via – Aving
Thanks Daniel