Patent ID: 8156187

Claim:
A method comprising: receiving a set of email messages at a wireless communication device, each of said email messages having at least one chunk of an attachment of the email message provided to the wireless communication device in response to user-initiated requests from the wireless communication device; for each email message of said set received at the wireless communication device, maintaining an indicator of whether at least one chunk of said attachment of the email message has been displayed on a display or played on a speaker at said wireless communication device; identifying a subset of said set of email messages on the basis of said indicator for the attachment of each email message of said set received at the wireless communication device and at least one user-specified parameter, wherein each of the at least one user-specified parameter can be set to a value so that email messages having an attachment for which at least one chunk has been displayed on a display or played on a speaker at the wireless communication device are identified based on said indicator for the attachment of each email message of said set received at the wireless communication device; wherein for each email message of said set received at the wireless communication device, the presence of at least one chunk of the attachment of the email message within an attachment cache serves as said indicator for the attachment; and displaying a representation of said identified subset of email messages at said wireless communication device.