A substantial firmware improvement is set to arrive on Barnes & Noble's Nook next month, bringing a host of new features and optimizations. Barnes & Noble says the 1.5 update will:

Dramatically increase NOOK 3G and NOOK Wi-Fi‘s page turn speed and deliver the features and performance enhancements most-requested from NOOK customers. These include improved search on the device, customized Barnes & Noble Library organization and password protection. The update also includes the ability to read continuously across all NOOK and all devices enabled with our free NOOK apps, by syncing your last page read.

[NOOK]