Techead

This is a pretty neat solution for IWB, completley hidden.... but unfortunatley its only for eno http://www.polyvision.com/Portals/0/brochure/PV_Prod_enoplay_1011_EN.pdf

You could get your supplier to get one in for a demo with one of the smaller boards. Polyvision is supporting a great offer on the boards Over the next few months. To my knowledge there are no reported issues with Bluetooth.

The surface of the board is indeed intended for Drywipe pen usage, hence the reason that it uses the finish that it does. It comes with a forever warranty on the surface so really it should be a one time purchase of an iIWB. These boards are best used with Ultra Short or short throw projectors. Software will always be updated and I believe the manufacturer is not far away from releasing a new function created from the demand of teachers/lecturers. Magnetic pen holders for the Stylus will be shipping with new boards from April 1st also.

SMS do an electric height adjustable mobile stand. the projector arm folds to the side and board lowers when moving through doors. That may work?

I think the cost details on the TOC document are SSP? AAA bateries in the Pen with anticipated 6 month battery life, but I suppose that depends on the time used at the board. Re-chargeable or a chargeable docking station for the pen may help

The Hitachi FX Duo board can be written on with a Drywipe Pen but it is not the only board on the Market which allows Drywipe pens to be used. ?no interactive whiteboard (hope the link works) Its been around sometime now.......

Hitachi also now have semi short throw. More models including ultra short widescreen are expected to appear in the next few months. Probably best to get your supplier to show you the projector

I'm sure you can find free trials for signage on the web PADS is one which you can download for 30 days

What about the Polyvision eno IWB it does everything you are asking and the surface is drywipe, no cables to the board either