The BTstack Keyboard application allows you to use a Bluetooth keyboard with the iPhone and iPod Touch. Foldable, travel-friendly keyboards have been supported for at least a half of a decade by all smartphones, except by the iPhone. That is a shame, as the iPhone is a compact computer you already carry around. Combined with a portable keyboard, it can replace your laptop for taking notes or writing emails at meetings or at your favorite coffee shop.

The application fills this gap. It is based on the open-source BTstack project, a Bluetooth stack designed for embedded devices where resources are scarce.

BTstack Keyboard runs on jailbroken iPhones, all iPod touch devices with Bluetooth support, and the iPad. It is available via the Cydia Store.

It works with all Bluetooth HID keyboards and the Celluon laser projection keyboards. So far, we have positive feedback for:

1. ★Apple Bluetooth Keyboard
   

2. ★Bluetooth Microsoft Wireless Entertainment Keyboard 7000
   

3. *Celluon Laser Projection Keyboard CL800BT, CL850
   

4. ★Cingular Portable Bluetooth Wireless Keyboard
   

5. ★Dell Axim Executive Keyboard
   

6. ★Dell full sized Bluetooth Media Keyboard, model y-raq-del2
   

7. ★Freedom mini keyboard
   

8. ★Freedom Universal2 (make sure you are in HID mode)
   

9. ★Frogpad
   

10. ★iTech Virtual Bluetooth Keyboard
    

11. ★KeySonic 340/540 BT
    

12. ★Logitech Cordless Mediaboard Pro
    

13. ★Logitech diNovo Edge
    

14. ★Logitech diNovo Media Desktop
    

15. ★Logitech MX5000
    

16. ★Matias Folding Bluetooth Keyboard
    

17. ★Microsoft Bluetooth Mobile Keyboard 6000
    

18. ★Nokia SU-8W
    

19. ★Palm Wireless keyboard 3245WW
    

20. ★Rocketfish
    

21. ★Think Outside Stowaway Universal
    

However, we received reports that it does not work with:

1. *Cygnet Bluetooth Keyboard
   

2. *Freedom Universal
   

3. *G-Tech Smart Fabric Wireless Keyboard
   

4. *HP iPAQ Bluetooth Foldable Keyboard
   

5. *Level One BLK-2000 Foldable Keyboard
   

6. *OMIZ
   

7. *Palm Universal Wireless Keyboard 3169WW (uses IR - no Bluetooth)
   

We intend to support the Freedom Universal. Stay tuned.