SMS Programs for a Windows Mobile 6.1

SMS-Chat
SMS-Chat is a Microsoft-developed Windows Mobile SMS application that organizes your text messages into threaded exchanges. With support for multiple recipient assignation, templates and hyperlink highlighting, the application groups messages by date and time into an easy to read layout, and is supported by Mobile 6.1.
MoblMsg2
MoblMsg2 allows you to send and receive text messages on your Mobile 6.1 smart phone. Simply designed, the application features one-click access to your inbox, outbox and composition interfaces. The application allows you to choose from a number of color schemes for your display, but is generally limited to the vertical display mode.
Mobile Receptionist
Mobile Receptionists augments the basic SMS application utilities with filtering configurations, enabling you to automate how your text messages are handled once you receive them, based on who sent them, the content of the messages, and the time of day you receive them. Additionally, the application supports GPS coordinate generation and the ability to automatically ignore or hang up on certain contact phone numbers.
Google Voice Easy SMS
Google Voice Easy SMS is a free Windows Mobile application that enables you to make and receive text messages by way of your Google Voice phone number. The application features the ability to synchronize with your phone's contact list, multiple recipient assignation, custom signatures for your text messages, and is supported by Windows Mobile 6.1.