Does the Sony x series walkman support applications and games?

The sony X series walkman has a slacker radio app and a YouTube app built into it but there is no way to add more apps.
btw i just bought the player and its awesome with sound cancellation built into it and unbelievable sound quality but if apps and games are wht u are looking for then i think the iPod touch is the best in the world.
- Anirudh Sen