Technically...... yes.
There is no easy way for the user to replace the battery and the
majority of installers are not interested in taking remotes apart and messing around inside.
Plus the Nevo tecs say that they don't have a viable process for people
to send in the units, have batteries replaced, and send them back out under warranty.

Practically..... maybe not.
First, I see Nevo coming up with a plan for battery replacement in the near future, the unit has only been on the market 8 months and has already
gone through changes and updates. Battery replacement is not a crucial issue
when dealing with a Lithium battery that has a fairly good life span.
There are other priorities, (Compatibility with more UPnP devices, and with
IP related automation technolgies).

By the time the battery in Nevo finally gives up the ghost, we
will probably all be using "NevoSL V". The question then will be, "What
happens to 'refurbrished' NevoSL units? Sold and resold on
EBay?

Also keep in mind that the post that you refered us to was obviously written by someone from RTI and, at best, understated the importance of using a network device over the standard RF for distributing IR.
If using the network is so beneath them, why are they coming out with
a network remote in the Summer of 06?