Yeah it will charge just fine, but you can't use it while it's charging (passthrough). In the Windows version, when you plug it in you can select charge only, and it will charge AND let you use it. It will change to "charging" only. When it says "charging...uploading..." it will not let you use it. For now I use a wall plug with a USB cable, which does not use the data pins of the cable, only the power pins, so it only says charging. It's when data is flowing between the device and computer that it will say uploading and keep the device shut off. With the Windows software this is bypassed by selecting charge only, which cuts data to the device and unmounts it from the computer so that only the power pins are in use, making it a passthrough. On MAC there is no such option, and so it always says "charging...uploading..." which does charge it but does not allow you to use it. This is a BIG oversight on Joyetech's part, as they have killed the passthrough capability for Mac users without having to use a wall plug. There are a couple of other oversight's on their part with the Mac version as well (such as telling you to place the upgrade file in the HEX folder, which the Mac version doesn't have, you just place it on the desktop) which is a sign they rushed it to get it out ASAP so that people could upgrade to 1.2 if they didn't have a PC. It's most definitely better than nothing, the program is still in beta, but I hope they get it fixed soon.