it is 100
For the fun of it.
There are many cell phones, known as smart phones that currently have WIFI built in. Such as iphone, droid, blackberry and windows phone. Check out ATT.com for their wifi models.
Mostly all cell phones have a built in camera.Ther are a few out ther that do not have this feature but mostly all have camers feature. Even prepaid phones have some camera phone features.
You can't only on sprint or Verizon have mp3 built into their phones.
just the magnets in the built in speakers
Many manufacturers are trying to go smaller with things, and cell phones are no different. The Willcom WX06A is currently the world's smallest phone to date.
Smartphones
There are many applications available that offer the functionality of tracking lost cell phones. These work by utilizing the built in GPS feature that is common on most cell phones.
Answer: It depends on which kind of cell phone. Most are a few inches long.
Most recent notebooks have them built in, and many cell phones do.
All the cell phones that t-mobile offers to the consumer, will have bluetooth built into them. This will allow you to connect to other phones and computers.
GPS is built into all cell phones now as part of the 911 emergency system. However, it's possible that not all cell phones actually allow the user to use it. Essentially all cell phones that are considered "smart" will have GPS functionality for the user. Cell phones like the iPhones even allow you to view it's location on a remote computer via it's Find My iPhone feature.