Came here to write basically this. The energy has to come from somewhereif it's being absorbed then a certain percentage isn't making it through.
Also, how long does it stay lit for? How does it know that you saw the message so that it can clear it? I wasn't able to find some of these answers on their Kickstarter page yet. I think I read the whole thing, but I didn't yet watch the videos.
I want to knowif it's only text and phone message, can it detect iMessages? I doubt it. What I mean is it sounds like they are checking for the special wavelengths that phone calls and SMS use, which in simple terms aren't the same type of data streams that one might use to view a website in Safari. FaceTime and iMessages would use LTE or WIFI, and would be indistinguishable from other traffic such as background refresh, push notifications, email, etc. So this case could be fairly useless for people who don't use regular text messages very oftenand at worst it would be inconsistentleaving you to believe you have no new text even though someone in your contacts iMessaged you. Another concern is Voice over LTE (VoLTE), which is coming down the pipe. I doubt this case would be able to detect this type of call as well due to the same concerns. Lastly, won't fit the iPhone 6 and it's supposed to ship in August. Pass!