As usual Laurent has been first to locate that 10.2.0.4 on AIX5L (64-Bit) is Out.
Patchset size is whopping 1.9G which I believe is the maximum size for Oracle Patchset till date. Looks like 10.2.0.3 on AIX had lot of bugs or it could be that DATABASE REPLAY feature needed more lines of code in AIX 
I am not sure why Oracle has named this feature as DATABASE REPLAY on 10.2.0.4. It should have been named as DATABASE CAPTURE.
Anyways I was trying to be the first person to post release of 10.2.0.4 Patchset , but I guess Laurent has written some Package which sends a SMS that patchset is out I need to start learning PL/SQL.
AIX has always been bigger, mainly due to the amount of static libraries (.a) in AIX vs shared libraries (.so) in Linux/Solaris.
I bet they will split 10.2.0.5 in two files
Thanks Laurent for your comment. I was not aware of this fact. Thanks again
Regards
Amit
Keep up the good work!