Apple released a great device which is an Apple Digital AV adapter (SGD$54.00). During your office meeting, you can use HDMI to DVI connector to present keynote¹ from DVI monitors and projector!
From your iPad 2 With the Apple Digital AV Adapter, it supported mirroring effect while connecting to HDMI display with audio! It can mirrors nearly any apps so that you can have a great fun and laugher during the gathering!
If you worry that it can consume the battery life, fear not, the Apple Digital AV adapter also include a built in second 30-pin connector which lets you charge and sync your iPad 2 while it's connected!
For those who use iPad 1, iPhone and iPod Touch 4 Gen, you still can use Apple Digital AV adapter! But, it does not supports mirroring effect! It can supports video-out like keynote¹ and watching movie from your HDTV, HDMI to DVI monitor and projector.
The weakness point is that the 30-pin connector end is slightly thick and might not able to fit through third parties brand for iPhone and iPad casing.
keynote¹- Apple presentation app version which allows you to create, add and edit slide show for your presentation. You can purchase from app store at US$9.99 (iPad Version).
