I love this, especially the price. Im currently using it on my G1, and a mp3 player, and a bluetooth headset. It charges quickly, and allows my other devices to stay charged on long flights or trips. The greatest feature in my opinion is that it can be pluged in to charge, while plugged into my phone, therfor charging BOTH my phone and the charger at the same time so that i dont need to bring 2 seperate chargers to charge them in hotels and such. Amazing product,amazing price.