@willeh - the electronics are completely separated from the vapor path, so from that perspective, the electronics are safe. With that said, I would HIGHLY advise anyone from blowing into the HydraTube. Hopefully common sense will prevail when using the Cloud and in our instructions, it will be abundantly clear that the HydraTube is for inhaling not blowing.
@ ILoveRadiohead! - You finished two drawings before I even got to mine. Think of the Cloud as housing a recessed male conical GonG joint that you can drop the bowl on top of. The bowl is essentially a female to male GonG adapter that utilizes two screens to hold the herb in place so that you can use it right side up, or upside down.
The female portion of the bowl that is attached to the male joint that is recessed in the Cloud, will feature a mechanism that allows that connection to be "stickier" than the connection from the bowl to the Cloud so you can safely lift your HydraTube off of the Cloud without worrying about the bowl coming off.
Hope this helps you visualize the bowl.
http://lh5.ggpht.com/_kpEL0aDZlUg/S95HHzIjAEI/AAAAAAAAECE/oZn941Glbg4/s640/Slide1.jpg