This is a free upgrade for customers who have purchased PocketTunes 4 or for LifeDrive, TX, Treo 680, Treo 700p, Treo 755p, and Centro customers who have PocketTunes bundled on their devices. Customers who purchased PocketTunes 3.x qualify for special upgrade pricing.
A complete list of PocketTunes 4.x features and fixes is available on the NormSoft website.
You can download the desktop updater or install the update directly on your Internet connected device with the Help > Check for Updates command in PocketTunes. The PocketTunes 4 user guide is also available online.