Will time machine get messed up in dual boot Leopard/Snow Leopard?

I have one piece of software that I need to use that does not work in Snow Leopard, so I have held off upgrading for awhile. I have a project coming up however that uses another piece of software that is accelerated greatly by running in Snow Leopard, thus I would like to dual boot Leopard and Snow Leopard on separate partitions.
My question is: is the Time Machine backup going to work when I am booted into either OS version? Do I have to disable time machine in one of them? I could be booted for several days at a time in one OS version or the other, so I would like to be backing up while in either os. I really value Time Machine. It has saved my behind several times.
Cheers,
-Matt

Matthew Woods wrote:
Thanks for the testing and tips Pondini. Sounds like everything will work, so I just ordered my copy of Snow Leopard.
You'll love it!
Your idea of excluding the the opposite boot partition from each other's time machine settings is a good one. I plan to keep most of my work files on a separate internal drive anyway (that will be included in the TM backup under either OS), so the boot partition not currently being used shouldn't change when I'm in the other OS.
Ah, in that case, don't partition the TM drive (otherwise you'll have two separate backups of the work drive). And it won't much matter whether you exclude the "other" boot volumes or not; if nothing changes, there won't be anything to back up.
There are a couple other changes in Time Machine for Snow Leopard, that you might notice:
Disk full option, messages, and handling. In TM Preferences > Options, the +Warn before old backups are deleted+ is worded +Notify after old backups are deleted+ in Snow Leopard. If the disk gets full under Leopard, the backup will fail with a message. On Snow Leopard, the oldest backup(s) will be deleted, then a message will be sent. See #C4 in Time Machine - Troubleshooting (or use the link in *User Tips* at the top of this forum).
The "Preparing" phase at the beginning of a backup is now called "Calculating Changes," and (effective with 10.6.3) you'll see "Scanning nnn items" messages when TM does a "deep traversal," and "Preparing nnn items" messages" on the TM Preferences panel and when you click the TM icon in your menubar, before actual copying gets started.

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