SID On has Share Board – draw, sketch and discuss on a pad! (iTunes Link) in the iTunes App Store for FREE for a limited time.

Share Board allows up to 4 users to connect simultaneously via Bluetooth or local Wi-Fi to create, innovate, draw, share pictures, play games or just have fun—and Share Board is inter-compatible with the iPhone, iPod Touch and iPad.

Share Board includes multiple drawing tools (Pen, Marker, Highligher), editing and scaling features, session save and log, the ability to upload and edit photos and text and features to share any session via email or Facebook. Assign session names and icons. Even connect your iPad to a projector to display your work for presentations.
Use Share Board to share thoughts and ideas during meetings, conferences or tradeshows. Upload pictures, add texts and share them on Facebook. Challenge friends to a game of Hang-Man or Tic-Tac-Toe. With Share Board, the possibilities are limitless.