The Bluetooth SIG has announced listing fee changes. Currently, if you build a 2540-based device using TI's design and BLE stack, the Bluetooth End-Product-Listing fee is usually free.
Effective Feb. 2014, the same listing will cost $8000. There is a one-time exception for 'innovators' for whom the listing fee is only $2500. Details at bluetooth.org (members only, but associate membership is free).