Camera attachments are old hat as phone accessories these days but the iblazr 2 has promise, The wireless flash attachment for iOS and Android phones has a 25 metre range, while letting you adjust colour temperature in the range of 3200K to 5600K. Not bad for a tiny attachment.
The iBlazr 2 uses Bluetooth to connect to phones and combines not one but four LEDs for a pretty bright (think 300 Lux) flash. You can also connect more than one iBlazr 2 to your phone for more lighting options.
What it also fits in the tiny frame is a 130mAh battery that comes with a flexible charger and claims to provide at least 300 flashes per charge.
Currently on Kickstarter, its campaign is already fully-funded so you can grab one for US$45. It comes in three colours to choose from: black, pearl grey and white.