I have a Bondi imac, and Mac OS X 10.1 works fine on it. I have 196 megabytes of RAM, and 10.1 is MUCH faster than 10.0.
Be careful with the boot drive size though, and as the 10.1 read me will tell you, on a 233, the Mac OS X partition should be completely within the first 8 gigabytes of the HD.
On the HD that shipped with the system, this is no problem. If you have swapped out the HD, for something larger, then you are stuck, and have to do some repartioning. This can be tricking and time consuming.
If you get a new hard drive, just be sure to make at least 2 partitions, and have the first one be smaller than 8 gigs.
