My ping is drastically slower using Wi-Fi?

I just had internet installed. Download speed is 5mbs and upload is 1.5mbs. While plugged into the router/modem, the ping is around 60-80. While connected to the wireless via router, the ping slows to 400-500. This is with only one device connected, internet not in use - simply testing the speed using speedtest.net

The router is in the center of the house, and I use my PS3 from one side of the house. The way things are setup, it's not possible to run LAN cable from router to the PS3 -- I do know that would be optimum. My question is, is this decrease ping speed just because of a poor router? The speed tests are done with a laptop and an iPhone, both within 2-3 feet of wireless N router.

If this is a router issue, please give me a suggestion for a router that won't suffer latency issues! Preferably something under 120 that will have decent range.

Added (1). I understand that the ping will be slower, but I shouldn't expect the ping to decrease from 70 to 500 just from switching from LAN to Wi-Fi, especially withing just a couple feet of the router. I have connected my computer to other wireless networks and have seen speeds as fast as 20ms via Wi-Fi.

To the guy that said "Seriously". Yes, seriously. I don't expect my speed to decrease that much, somethings not right.

Added (2). Once again, I can't run a LAN cable from the router to the PS3, that'd require drilling holes and fishing the cable through the walls and up a flight of stairs, wireless is my only option!

Iphone - is there a way to keep the AE/AF focus lock on always?

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I need a good armband for an Iphone 4?

I'm going to start running this summer and need one that will protect my phone from moisture but still be able to listen to music. I've been looking for one but still can't find one.

Added (1). I also want it to track my runs

Added (2). Seriously! I'm not going to running on the roads i'm going to a park or something. I'm aware that it's dangerous to not pay attention not only to me but also to drivers drivers. I just want to see how much I ran.

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