Embodiments of the present invention are directed to an attachment that
may be coupled to a wireless communication device, such as a cellular telephone,
personal digital assistant (PDA), or the like to perform commercial or other information
transactions, as well as to an apparatus, system and method for conducting such
transactions. The wireless communication device generally includes an antenna that
may be directly accessed by a processor in the attachment for transmission of data
to a remote computer over a communication network. The attachment may also include
an input device, such as a magnetic stripe reader, smartcard reader, barcode scanner,
optical scanner, fingerprint scanner, proximity detector, or the like. When input
is received at the input device, the input information may be sent to the attachment
processor for processing and transmission to the remote computer via the antenna.
The remote computer may process the received attachment-processed data and generate
a response to send to the device processor.