So I am very particular about the way I want to setup my on-the-go setup. I have a pair of Sennheiser HD598s and I just purchased a cable + mic for them that connects to the single jack connection on most portable devices and laptops nowadays. I want to use them on my desktop when I game/listen to music + voice chat and I want to be able to take them on the go and use them with my phone and still be able to pick up calls or control the audio. Which puts me in a predicament as most of the quality DAC/Amps don't have mic. I would love to get into things with an E07K or E17 or even an E18, but none have a good mic passthrough. I am also a newbie to the whole audiophile scene and I am not as hardcore about sound as most. So enough of the preamble. I was just looking through Creative's site, maybe planning to get another X-Fi Go! (gave my other one to my GF) when I saw 2 new products, the E1 and the E3. The E3 doesn't seem to be out just yet, but hte E1 is, and they are directly poised to replace the X-Fi Go! especially the E1 which seem like a direct replacement. Also the E3 looks great, a bit pricier and probably not as good as a proper FiiO, but just from what I understand it seems good. It can function as a DAC/AMP if plugged into the USB or be a Bluetooth DAC/AMP for phones or PCs. The key to the E3 is it can be used to handle calls when in bluetooth mode from a phone. and on a PC function as a Audio Card replacement, especially if you use onboard integrated chips like Realtek. Question though, has anyone tested these, or tried them? They really look like the ideal middle-ground and compromise for a mobile setup. the E1 is out now, and it seems the E3 is on the verge or releasing but not quite out yet. I am tempted to buy both (I can give the E1 to my gf later to replace the aging X-Fi Go! I gave her that she uses for a pair of G230's from Logitech for gaming to connect to her laptop because she is too lazy to get a joiner cable to convert her separated Mic + headphone jacks into a 4 connection single jack.) http://us.creative.com/p/sound-blaster/sound-blaster-e3 http://us.creative.com/p/sound-blaster/sound-blaster-e1 This would be my first AMP, and I can at least compare it to th X-Fi Go! as a dac. But even if I get these and try to do a review, it won't be worth much because I don't have much to compare to.