It looks like the 12.2(52) release is able to run EEM. This only seems to be currently available for the WS-3550-24-DC-SMI model but I have that image loaded on a WS-3550-PWR-EMI:
Cisco IOS Software, C3550 Software (C3550-IPSERVICESK9-M), Version 12.2(52)SE, RELEASE SOFTWARE (fc3)
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Fri 25-Sep-09 09:05 by sasyamal
Image text-base: 0x00003000, data-base: 0x015DB684
ROM: Bootstrap program is C3550 boot loader
Switch uptime is 22 minutes
System returned to ROM by power-on
System image file is "flash:/c3550-ipservicesk9-mz.122-52.SE.bin"
Cisco WS-C3550-24-PWR (PowerPC) processor (revision G0) with 65526K/8192K bytes of memory.
Running Layer2/3 Switching Image
Model number: WS-C3550-24PWR-EMI
Embedded Event Manager Version 3.20
Name Version Node Type
application 01.00 node0/0 RP
neighbor-discovery 01.00 node0/0 RP
identity 01.00 node0/0 RP
mat 01.00 node0/0 RP
syslog 01.00 node0/0 RP
routing 03.00 node0/0 RP
cli 01.00 node0/0 RP
counter 01.00 node0/0 RP
interface 01.00 node0/0 RP
ioswdsysmon 01.00 node0/0 RP
none 01.00 node0/0 RP
oir 01.00 node0/0 RP
snmp 01.00 node0/0 RP
snmp-object 01.00 node0/0 RP
ipsla 01.00 node0/0 RP
snmp-notification 01.00 node0/0 RP
timer 01.00 node0/0 RP
rpc 01.00 node0/0 RP
This is in a lab environment but it seems to be holding up fine. Does anyone know if they will release this image for the other 3550 models? Has anyone tested with this image yet, either on the 3550-24-DC-SMI model or any other model?
Thanks for your help.