Anbot - a vision based micro robot

Hello everyone!
I just joined LMR and sharing my current robot in progress, called Anbot. It's a vision based micro robot. Following is a bit of details.
The hardware will have:

• Track based locomotion
• Battery box (4x AAA)
• SN754410 motor controller
• PIC18F26K20 micro
• MRF24J40MA Zigbee/wireless
• JPEG camera

Offboard hardware will also include:

• A Zigbee remote controller
• A Zigbee Raspberry Pi gateway for connecting to home router

Features it will have:

• Will be connected to home network and internet via the gateway
• Can be controlled from the PC, Phone or iPad via internet. Camera can be turned on and off. Photo will be shown on PC/iPad.
• Can send out JPEG image (VGA) continuously
• Will have autonomous line following mode
• Will have autonomous shape/direction following mode.

I'm maintaining this blog to show step by step progress: http://robot-parts.blogspot.co.uk/
I hope to make a good progress by this month. I appreciate your ideas, comments and suggestion.
Please let me know what do you think of this robot. Have a great time!
Thanks!