[Networking] RanEnRui:
Got mine from Sprint a week ago after I complained about bad signal. At first they offered me it for $100 along with a $5/mo fee. I told them I thought it was rather silly I should pay for their lack of service and I already pay $10/mo for 4G (and I have 2 Evos on my plan) which is a limited market. She transfered me to account services who was able to give me it for FREE and NO additional charges/fees! Came in 3 days via UPS.

What you get: The Airave Unit, Cat5 ethernet cable (yellow :D), external GPS receiver (optional), power adapter, and various documentation/manuals.

Installation: Plug in the power adapter to the unit and an ethernet cable to the WAN port to your router/modem. Wait about 30-60 minutes for it to activate itself and go online. Once the lights are all solid (Internet/GPS/Wireless) you are set. No configuration or setup is required otherwise.

Use: Your phone should automatically use the Airave since it is the closest 'cell tower'. You should notice full signal strength or close to it depending on where you are in relation to it. The best way to test if you are connected to it is make a phone call, you should hear a double-beep before the call is made (or if you answer an incoming call), which means you are connected via Airave to Sprint's network.

The Airave requires a GPS lock to validate your location as being within the US. You can bring the Airave with you when you travel, though you will still need an ethernet connection in order for it to connect to Sprint's network. Obviously, if you try to bring it outside of the US, it will not connect due to GPS seeing you outside of the US. Sadly, it also does not work in Alaska. The unit itself has a GPS receiver inside, but if you place it in an area with poor reception (two story houses might have this issue), you can use the external GPS antenna that they give you and place it near a window.

The Airave is a seamless addition for most people. If you are not currently using a router, have no fear, as the Airave has two LAN ethernet ports which make it a mini router I believe (I have not tested it though I can't imagine what else they would be for). So you can connect your PC to the Airave and use your internet connection that way.

If you are using a router, I believe it has to support VPN passthrough. I am not entirely sure but most of them nowadays do support it. I am using an Apple Time Capsule (newest generation) and it works flawlessly.

If you are on a call using the Airave and leave the signal range of it, it can hand off the call to another tower seamlessly (Airave -> Tower). However, it cannot do it in the reverse manner (Tower -> Airave). So no worries if you somehow wander out of the Airave's coverage, which I have yet to test the effective range on.

I would recommend 40-80 KBps bandwidth per call, and 1-2MBps per 3G device. Me and my brother use the Airave simultaneously for both voice and data while streaming Netflix, online gaming, and torrenting. I have yet to notice a performance loss in either data or voice. However, if you have a Wifi router, it would be wise to use that instead of 3G.

Another nice benefit is battery life, and as an Evo user I can really appreciate that. Before, I would get 2 bars of 3G at best, usually 1, and sometimes none at all. So my phone was constantly searching for the tower or ramping up the antenna power to talk to it better. Now that the tower is literally within 3 meters usually, it can keep the radio down to minimal power usage. I have noticed a GREAT difference on leaving my phone on my desk overnight with 3G on. Before I would lose a considerable amount of battery (25% or more at times), and now I lose maybe 5% at best. Of course, using Wifi would be optimal since it could switch the 3G radio off in most cases, but for those without that option this is a great way to help battery life at home.

Summary: This device is easy to set up, easy to "use", and does exactly what you'd ask from it. Most people can't justify the price for Sprint's shortcomings, which is understandable, so try to get it for free by complaining and being stubborn about it. If your contract is nearly up, this is PERFECT leverage for you to get one for free.