Suspend/resume works flawless on my Thinkpad T61p running Ubuntu Hardy 64-bit after I did some minor changes described in this article, in fact suspend-to-ram/resume works so well that I only reboot the system once every 2-3 weeks. Using suspend-to-ram/resume saves a lot of hassles but it could also cause some additional problems. For example, I have a samba file server in the local network at home, if I mount the shared directory on my laptop, suspend, and then resume when I get to office, the system can no longer find the file server and it would cause some problem. In order to solve this problem, I need to setup the laptop so that it would automatically unmount the samba directory before the machine goes into suspend.

For some time I have been using the cron package on my Ubuntu Hardy
machine to scheduling jobs that need to be excuted hourly. I found it
is very handy because all I need to do is to put the excutable scripts
into /etc/cron.hourly directory (Just to make sure their is no "." in
the file name, e.g. the script named "myscript-sh" will be excuted
while "myscript.sh" won't ). However, recently I found those scripts
that requires root privilege are no longer automatically excuted hourly

Sun Microsystems has just released the version 2.0 of VirtualBox, the
popular cross-platform virtualization application. One biggest new
feature in the newer version is that it now supports 64-bit guest OS.