I have been using WiFi Skype phones for my phone calls almost exclusively for the past 6 months. I had a SMC WiFi phone for most of that time and luckily it got stolen. Don't get me wrong, the SMC is a good phone, but it is definitely a first gen (feels like a toy in your hand). The Linksys iPhone feels like an actual product. The Linksys iPhone is great once you upgrade it's firmware. Even with this upgrade I would still place SMC's software better as far as connectivity, but the Linksys' again feels like a more refined product with the software interface.As far as I can tell the call quality is also much better. With my SMC there was a bit of an echo and lag on the receivers end. Calls on the Linksys iPhone are just as clear and feel more like traditional telephony calls. The speakerphone is a nice feature, but activating it is a bit cumbersome.Battery life is about the same, but for me I am able to make it through most days with no worries. Taking it from home to work and out and about with no worries of a dead battery during the course of a day (depending on how popular I am on a given day).Screen quality is also drastically improved over my SMC phone. The screen is crisp and plenty bright. I usually run it at half brightness and it is more then enough. The SMC's brightness I always felt was too high even at it's lowest setting.All in all the Linksys iPhone is far better then the SMC, and seeing as most other WiFi Skype phones seemed to be based on the SMC phone, I would have to place this one at the top of the market currently. The only real issue currently with WiFi phones is their lack of browser support. This way trips to panara and other hot spots that require browser authentication wouldn't leave me so withdrawn from the world.side note: While ditching a cell phone might not be for everyone, I have enjoyed not being tethered phone 24/7. 90% of the places I go have open WiFi so it is really not that bad, but if nothing else a WiFi Skype phone makes a great home phone replacement.UPDATE: So I have had my phone for over a month now, what do I think? Battery life is about the same, and have yet to get to the end of the day and worry my phone will die in mid-call. I will say that I am really impressed with the call clarity on both ends as well as the interface like the call waiting notification actually works (SMC not-so-much). All in all, a month in and I am still very happy and would definitely recommend this phone to any skype user.