Developing apps for Near Field Communication (NFC)

Please point me to a toolkit i can use to build Near Field Communication apps.

thanks

From stackoverflow

• You can use the Contactless Communication API for Java.

  CharlesO : is there a .net alternative?

• In order to get started you most often need to get the hardware. Such as NXP, ACS, Omnikey etc. Then you can purchase an SDK with the product (omnikey has it included), they usually contain SDK's for JAVA, C and/or C#.