Here you go guys...sorry about the slow response, I dunno what happened...I'm subscribed to this thread, but didn't see any of these posts asking for the Twitter.
Like I said before, I haven't resigned the apk...so you need to follow the directions below to install.
Root Explorer Method
1)
Download Twitter.zip
2) Rename to Twitter.apk
3) Move Twitter.apk to sdcard
4) Make sure your EXISTING twitter is named correctly. If it is anything other than Twitter.apk, rename it.
5) Make sure your EXISTING Twitter.apk is in /system/app/
6) Move the NEW Twitter.apk from the sdcard to /system/app (Must be mounted R/W)
7) Change permissions to User: Read/Write Group: Read Others: Read
8) Reboot
ADB Method
1)
Download Twitter.zip
2) Rename to Twitter.apk
3) Move Twitter.apk to your AdroidSDK/tools/ folder (or wherever your ADB is located)
4) Make sure your EXISTING twitter is named correctly. If it is anything other than Twitter.apk, rename it.
5) Make sure your EXISTING Twitter.apk is in /system/app/
6) Plug your USB cable in (No need to mount)
7) Open a cmd prompt
8) Type in the following (after each line hit enter)
cd c:\Directory where you moved the Twitter.apk on your PC (For me it is c:\AndroidSDK\tools\)
adb remount
adb push Twitter.apk /system/app/Twitter.apk
adb reboot
Any questions, let me know