Yes, rt2500 is very free software friendly, but that does not automatically 
unfortunately mean that the drivers would be top-notch.
The current problem is, that only the so called "Legacy" "BETA" drivers work 
reliably, but they don't support features needed by network-manager. On the 
other hand, the "rt2x00" driver, which should replace all the current 
rt2400/rt2500/rt2570/rt61/rt73 drivers, is not yet stable.

So basically the whole WLAN situation on Linux is a bit unfortunate,
with some chipsets not working at all, most requiring non-free firmware
blobs to be included in the distribution, and even the few potentially
fully free solutions do not have good enough drivers. Plus the fact that
kernel side things are a bit fluctuating. But as always, things are
improving - with the DeviceScape WLAN framework in kernel finally
approaching, and many drivers finally maturing (like rt2x00, broadcom,
zd1211rw), I'd finally see Ubuntu 7.10 to have chances to have
relatively nice support out of the box for also other cards besides
Intel's, albeit it requires those firmware files still for most cards
other than rt2x00.

In Ubuntu 7.04, I have my ZD1211-based card now finally working with the
default zd1211rw driver rewritten from scratch by the community. Also
some of the Broadcom users are reporting they can now use the GPL driver
instead of ndiswrapper hack. Granted both of those need the firmware
files, but still requiring firmwares is a lesser harm than something
non-free running on the computer CPU itself.

That said, Ubuntu really should use the 1.1.0-b4 + patches driver (ie.
latest legacy driver for rt2500) that Debian also uses, from
http://packages.qa.debian.org/r/rt2500.html . It works reliably, but
just needs that network manager is not used (AFAIK). Probably no-one in
the Ubuntu core team has devoted enough though to this matter, and the
fact that network manager was decided to enable by default complicates
things.

-- 
rt2500 in feisty: problem & solution
https://bugs.launchpad.net/bugs/78037
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