There are several good and recommended vendors of screen protectors for the BlackBerry. These have been mentioned over and over in the threads at BlackBerryForums.com
$250.00
vintage NOS F-4 Phantom flight control transducer L1208 1680-00-788-8867 BF
$102.50
Transmation Pressure Flexitester 1090 Pressure Transducer 0-100 PSIG PS6100
$22.48
1974 NASA PRESSURE RATIO TRANSDUCER, ME 449-0124-0002 OPENED, WORN ON INSIDE
$160.30
Lowrance HOOK2 Bullet Skimmer Transducer for HOOK2 4 and HOOK2 4x Fish Finder...
$46.39
Vintage Electronics / Radio Parts AMF Relay Switches Aviation Vacuum, Transducer
$125.00
1994-1999 Discovery Cruise Control Transducer
$39.00
NOS TRC Frequency Transducer 60hz, PN 19260, 30554 Assy 88-21136, Lt Damage
$99.00
Pressure Transducer New 7.03289.00 Pierburg OEM
$46.17
A518 46RE 47RE 48RE Transmission Governor Pressure Sensor Solenoid Filter Kit...
$98.78