We don't really know what's new in that firmware yet, because there is no Chinese member to translate the page from moto.it168.com yet. Here are some keywords:
- It do support .lin and .sh execution
- Most probably it includes everything known until that date
- It has some compress.lin file. Not tested what it do yet
- unlink_file.mpkg

We will add features list of that Motorola ROKR E2 firmware asap
Download HERE

NOTE: "46p" is the password for asmotoe2_46P_AP_20070113_2.rar. I am not sure why the Chinese people password protect their archives