Version Differences for H21

(Added 'determining firmware version' section)
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    + [[Image:thumb1 H21-qwerty-bottom-perspective.jpg|thumb|H21]]  
       
       
  The H-21 is Opticon's Windows Mobile 6.5 smart phone with an embedded scan engine.    The H-21 is Opticon's Windows Mobile 6.5 smart phone with an embedded scan engine.