What is the fastest smartphone available right now?

the Droid X =D

2

You can find the answer here:

http://smartphonebenchmarks.com/

This site maintains results for a benchmark called Quadrant which tests phone's CPU, Memory, IO, 2D and 3D speeds. It also contains results for overclocked phones as well as customized ROMs.

With all the fine tuning, Samsung's Galaxy S (and its siblings) is leading by a good margin. Most of the phones in the first page is FASTER THAN iPhone 4! iPhone 4's hardware is basically a cut down version of Samsung's Galaxy S.

If you wait for few months, dual-core processor based phones will be out soon. Some examples include:

Verizon Droid T2 (using NVIDIA Tegra 2) : http://droidt2.com/

Verizon Scorpion (using dual-core Qualcomm Snapdragon) : http://www.htcscorpionforum.com/

T-Mobile HTC Glacier (using dual-core Qualcomm Snapdragon) : http://htcemerald.com/

Sprint Sabor (using dual-core Qualcomm Snapdragon) : http://htcsaborforum.com/

i think you go with Seidio Innocase II Surface Case for HTC EVO 4G (Black)

Innocases have quickly become one of the most popular products Seidio manufactures. Crafted from a hard yet flexible material, it provides an amazingly thin layer of protection without adding the excessive bulk of other cases.

http://www.amazon.com/Seidio-Innocase-Surface-Case...

..................

http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

HTC EVO 4G or the iPhone 4.

hands down. (: