64 bit - Why (again) Ubuntu's recommended version (for 11.04) is 32bit, not 64bit?

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Why not use 64-bit Ubuntu?

11.04 is already available. But why 32bit is again recommended and what's "wrong" with x64 ?

P.S. I know about this question, but this is kinda different.

There are more 32-bit packages supported compared to the 64-bit set.
And, there is still a wider footprint of 32-bit platforms.
This is the reason we still see 32-bit being 'recommended'.

You might be interested in some history -- related to Ubuntu 10.04/10.10, Why not use 64-bit Ubuntu?
Refers to Launchpad bug 585940, from 26th May 2010 titled,
Text reads "not recommended" for 64-bit.

Guess, it is better to see a 'recommended' tag on 32-bit;
rather than a 'not recommended' tag on the 64-bit version :-)
Maybe that too will go away by the next LTS release...