The smaller LCD is 02 windows mobile phone. I think that is connected to car pc for Internet access through GPRS.
Good job done. Can you please mention the price you paid? A suggestion, go and buy a USB internet card from Tata Indicom or Reliance. That should keep your dash clean and free the effort for connecting the phone.
Any plans of GPS? Buy one of those Bluetooth GPS receivers. Shouldn't cost more than $70.
buy GPS Now - Navigation Products for Pocket PC PDA, PDA Phone, Bluetooth GPS, PDA GPS is one good site.
When switching off the engine, does your car pc go in to suspended mode automatically?