I dont know...It runs on the Droid and its processor is 550Mhz. It should tho.
Rooting is easy, it depends on the phone and the software. Some phone, software combos are easier to root than others. Rooting the Droid on 2.1 was easier than rooting it with 2.2., rooting the Inc was complicated in the beginning, etc.
I think most root methods are easier now compared to a few months ago.
Yes, it differs with each phone b/c of 1) Manufacturing differences, 2) Overlay differences and boot loader differences, and 3) relative new-ness of the phone.
The DROID, for example, and the N1 have been around for a while - and both were running completely stock ROMs with no overhead baggage (aka Moto Blah / HTS SenseUI). The Droid @ has not - so not many devs have gotten their hands on it to make the rooting process straightforward and easy.
Before you root, though, be sure to do a lot of reading and make sure you understand what every step is and what you an do if the process fails before you start _ I cannot stress this enough - it will save you several years on your life if you're ready in case something goes bad to start doing things to fix the phone.
Taking a brand new phone and trying to root, only to have it not boot up at ll, can be extremely harrowing - especially when you consider that it may not be replaceable under warranty if the Carrier / OEM discovers what you were doing. With a little bit of patience, though, most things that are done can be undone, and with most phones now, it is rare that you get a truly bricked phone.
Finally, in addition to all the wonderful apps and such that require root, another advantage of being rooted is that you are in more control of your phone - with root access, you can remove even system apps (like those pesky Corporate email and Amazon MP3 apps) to have a smoother experience on your phone, particularly if those apps tend to run in the background all the time even when you don't use them at all.
just to give you an idea: I rooted my DROID back in Jan sometime, and since then I have overclocked my phone 118% (take that, Intel!) to 1200 MHz, run a countless variety of ROMs, learned how to save important files and settings on my phone to carry them over to the next ROM, and gotten some really god "Ooohs!" and "Aaahs!" from folks on the dark side....
My main reason for getting the DROID (versus Eris and other Android phones) was 1) It had a virgin OS on it, without VZW putting crap on it, and without Motorola putting crap on it, and 2) When I researched it, it had the most potential of all phones that came subsidized with a contract. If I had the money, I would probably have opted for the N1, but since my service was with VZW the DROID was a no-brainer.
I then did a lot of reading on rooting the phone in December, and finally decided to do it myself in Jan - and am extremely happy I did.
It depends on the processor. Some are more feasible to overclock than others. I don't know what chip the ZTE Racer uses exactly, but seeing that it's an entry-level budget phone, I doubt you're going to get it running at 1 GHz any time soon. Or ever. Plus, you need developer support and custom ROMs/kernels that support overclocking, and I'm not sure there is much support for a device so... well, unattractive (to modders, anyway; most go for the high-end phones to play with).
The only possible reason for me to root the phone is to get Froyo. But since it will be available as OTA this month, I probably will not root my phone.
So what Verizon has installed a bunch of app that I don't need? They have done that on my current BlackBerry. All I have to do is to move them into a folder and forget about them. It is really no big deal.
I have no need for tethering. At home I have TimeWarner cable. On the road, my laptop has a Verizon broadband aircard. I doubt a smartphone over the 3g wireless network can provide enough bandwidth to do any serious computing anyway. And I believe more and more people are switching to the mobile tablets like the iPad and all the upcoming Android tablets for that purpose. So while tethering sounds like a good idea, it is really not that practical.
I suspect most people who root their phones are in the telecommunication industry or mobile phone industry. Such knowledge and experience might be valuable to their profession.
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