From HP’s press release:
The iPAQ h5550 and accompanying accessories were launched on April 19, exactly four years after the introduction of the first iPAQ Pocket PC.
The iPAQs will be used as mobile productivity tools to record daily crew procedures, write personal memos and check e-mail and calendars. The space crew will also be able to listen to music, view photos from home and read e-books, allowing them to have some of the comforts of home on their journey. The devices will remain aboard the space station and be reconfigured for each new crew. For the next flight, two additional iPAQs are expected to launch to the station for a total of four iPAQs.
