[7/13/2011]New method to get "temp-root"(root won't disappear until reboot!)
Sorry for poor English
This method is based on joel.bourquard's method,here is the orignal link:
http://forum.xda-developers.com/show....php?t=1151735
Thanks to joel.bourquard's.
I've tried almost all the method in xda

And the newest perma-root caused that i can not install apps from computer..Today i found that link /data/bin/su to /system/bin/su and then root explorer works and i can delete apks easily..I shutdown my phone(fastboot enabled)and boot it twice,root still exists..That will be nice
Root Explorer 2.16, Titanium Backup 3.8.9.2 ,Setcpu 2.2.4 all tested,workds perfect
Requirements:
Original "out of the box" Sensation or EVO 3D (untested).
Android SDK tools ("adb" command) on a computer.
USB connection between computer and phone.
USB debugging enabled(Settings, Applications, Development
Initial (one-time) setup:
Extract Easy_Fre3vo_Bat.7z
Put all the files in the "Resource"folder" to User's folder(For example,My computer user's name is Jerry,so i put them into C:\Users\Jerry)
run cmd and input the following command
adb push fre3vo /data/local/tmp/
adb shell "cd /data/local/tmp ; chmod 755 fre3vo ; ./fre3vo"
adb shell "mkdir /data/bin ; mv /data/local/tmp/fre3vo /data/bin/"
adb push su /data/bin/
adb push root.sh /data/bin/
adb shell "chmod 4555 /data/bin/su ; chmod 755 /data/bin/root.sh"
adb shell "/data/bin/root.sh"
adb shell mount -oremount /dev/block/mmcblk0p22 /system
adb install Superuser.apk
adb shell chmod 06755 /data/bin/su
adb shell ln -s /data/bin/su /system/bin/su
After every reboot:
adb shell "/data/bin/fre3vo"
adb shell "/data/bin/root.sh"
adb shell mount -oremount /dev/block/mmcblk0p22 /system
adb shell chmod 06755 /data/bin/su
adb shell ln -s /data/bin/su /system/bin/su
And here is a bat(No need ADB from SDK)
Thanks to Wisefire
Easy_Fre3vo_Bat.7z
And here is some picture to see:
Now it is time to go to bed

Have fun!