Yes, in 2010 the Droid Eris could be upgraded to Android 2.0. Later a developer from China posted a Leaked ROM that was running Android 2.1.
Motorola droid cause it has a full qwerty keyboard but if you are a touchscreen person get the droid Eris
Yes, but it must be rooted, and you need to install the "wireless tether" program from the Android Market.
No. The Droid X and all others (Droid, myTouch, Droid Eris, etc.) are all based on the Android platform. Android is based off of Linux. Apple (iPhone, pod, etc) is also based on Linux, but neither device use each others coding.
the droid Eris is 99$ from Verizon with a 2 year contract.
Yes. The Droid Eris is a smart phone manufactured by HTC.
no the droid Eris is not a good phone.
Droid is a shortening of Android. Droid is labeled with many phones. [Ex: Droid Incredible] Android is used for the operating system that is compatible with the phone.
No it does not.
It is possible to root / jailbreak the Droid Eris. You need to use a program like Unrevoked to root it.
No. They are two different cell phones.
Yes, Verizon has the Motorola Droid. The Verizon also has the Droid Incredible, the Droid Eris, and the Droid X all made from HTC.
I don't think so. Even though I own a Motorola Droid, I have heard destructive criticism about the Eris Droid, so I'm thinking that probably not. But I guess it depends on what your specific needs and/or likes are.