Nexus One

I bought a Nexus One the other day. It's a very nice phone that does pretty much everything I want it to. Before I was just using an ipod touch, so it's nice to have a device which has a microphone, camera, and GPS. The GPS works very nice. There is one very frustrating aspect of the phone though which is its lack of good current voip options. I bought the phone unlocked without the T Mobile contract. I actually was able to configure my phone to make and receive calls using an application called sipdroid with my gizmo and google voice accounts. I just entered my gizmo username and password in the sip settings of the app along with the following gizmo proxy: proxy01.sipphone.com. However, after doing all this the call quality was terrible. Especially for calls I received. I hope this is just a temporary issue that google will fix soon. In fact, google just recently bought gizmo.
Another thing I am trying out is mifi. I've never even heard of mifi until a few days ago. Apparently, mifi takes the data from a 3G network and creates a wifi network that computers, laptops, phones, etc. can connect to. I bought a mifi card from Verizon and chose to pay month to month without a contract ($60). The bad thing is that there is a 5GB/month cap. If it weren't for this limitation then I could theoretically use mifi for home use as well as for mobile phone use. Then I would just have one monthly data bill. I've heard that Cricket does offer unlimited mifi, but they don't sell the wifi card I bought. They only have wifi usb devices.
I hope that the wireless spectrum being relinquished from tv use will be dedicated to national wifi soon. That would be even better than mifi.