Does TI 2010 - support backup of laptop over wireless lan?

why would it not

If you can plug the laptop into the router with a cable I would do that as the backup will complete much faster than a using a wireless connection. But yes, it will work either way.

Because prior versions of TI seemingly could not
The old support forum had this issue raised several times.
The possible solutions provided was to try various  combinations/permutations of:
   "hdd writing speed" 
   "network connection speed"
   "backup priority"
   "compression"    
on RARE occasions the user receiving the report said it worked, almost always they said it did not.
The user requesting the support always said they had no problem with files/documents created wireless just issues trying to have acronis create its .tib file.

Because this was a re-occuring support question with older versions was curious if it works in TI 2010

Martin - are you saying you have personal experience of a successful wireless full TI backup?

I've done it a couple of times in the past, they have been small backup's though. After that I tried cabled network backup's which was not as slow, but still slow, now I just use a big USB 2.0 external drive.

Thinking about this for a second, it would probably be quicker to backup to an external hard drive, then copy the backup from the external drive to another computer if needed. I think wireless is just to slow for this kind of data transfer, also if you lost your wireless connection for a second or two you will have to restart the backup.

There is also the other possible problem of the TI rescue CD having the proper drivers to work with your wireless network.

Tried TI_2010:
Product would not run correctly at first. Opened up a support ticket. Turns out solution was remove and re-install.
The issue was TI_2010 does not correctly upgrade from TI-11 will install correctly when no prior version is present.
Once that issue was resolved I did a full backup of HD via a wireless connection to lan.
(the resultant 52 gig ".tib" file created without incident  and took apx 6 hours).

Afterward, using a lan cable I did a verification of the file.   Verified perfectly ( this step took apx 90 min).

So YES - I can confirm with personal experience that TI_2010 WILL do a full backup over a wireless network without issues.

As for comments about efficiency:
Yes I do have a USB drive for backups and can confirm that does work the fastest. 
Yes I do have a lan cable and that is the next fastest method for backups.

That said, to my mind the single biggest driving factor to backups is to  actually have one. 
It does you no good to be without a current backup but say - hey I could have made one just x minutes had I taken the time to do so before this crash.
I really don't care how quickly I can create a backup by doing something manually.
For a laptop (versus a desktop) to create a backup with a USB or lan cable one actually needs to "do" something  (such as plug in those cables).
But for a laptop a wireless backup "easy" painless - particularly incremental backups .
I have two things setup to ensure the laptop is backed up.
I have a 4am incremental backup scheduled for every night.
I also have an  icon which when clicked runs does a command line incr backup and then performs a shutdown of the laptop.

My work habit is to shut down the laptop by using the icon which does the backup. 
Should I forget to shutdown the laptop and go to bed then at 4am a backup will automatically occur. 
Either way, I get a backup every single day.
I can go for months like this before the urge stikes to manually make a USB or lan cable full backup.
I have acronis configured to send me an email whenever incremental backup fails.
Full backups (which occur only a few times a year) send e-mail regardless of success/failure.
The above means e-mail from acronis is important and needs to be read.  On a daily basis - no news is good news as backups are working without incident.

A few months ago I had an HD failure.  SURE was nice to have a backups from the prior day. 
Went to the store, Bought a new HD, restored the image and that same morning the laptop was up and totally working as if nothing ever went wrong.
Acronis scored an A+ that day.