You could try here: https://bitcointalk.org/index.php?board=29.0

I've a feature request. Currently I can import a private key, then delete it and leave the public address - thus making a watch only address. Would it be possible to just allow the import of a watch only address (via QR code).

Awesome! You are way ahead of the curve!

I have a bunch of paper wallets. If I would like to verify how much is on it, rather than import the public key, I would like to just scan it to get a balance off the block chain. Would that be possible?
Also, would it be possible somewhere to see the individual balance of all keys stored in Mycelium? Currently we only see a total balance of all added together.

There is no option to just scan + observe balance/tx-history. You can import the address which is almost as easy, and with the options listed below this might be what you want to do?

As westkybitcoins says, you can get that by disabling Aggregated Mode in settings. This way you operate on one key only when viewing the balance or tx history, or when sending coins (read-only obviously cannot send). In version 1.0 segregated mode is the default for new installs.

Another option is to place the imported bitcoin address in the archive. Records in the archive are always treated as single adressses/keys. If an archived address is selected you will only operate on that one (like with active keys in segregated mode), so if you go to Balance or Transaction History, then you will only observe the single archived address.

You mean : "aggregate mode" is unchecked 
But yes, the cold storage spending wizard could use an extra page where you see what is on the address before you start spending from it.

I see. So basically you are asking for a "Check Balance" menu item with 3 steps:
1. Scan a bitcoin address (maybe even a private key)
2. View the current Balance + TX history
3. There is no step 3 ;-)
If there is high demand for that we can add it, but the set of features we have on our plate... so much stuff to do, so little time

BTW: Andreas and I are panning out the last remaining bugs in 1.0. We are at the nitpicking stage, and I really hope for a release in a day or two. (am I repeating myself?). You can join the Mycelium Beta Testers group at Google + if you'd like to try it out.

In the meanwhile, the translation efforts for 1.1 are gaining steam. Portuguese has taken the lead with 55% completion

Here is the idea of the day!

YOU GUYS ROCK!

Thank you so much for this amazing wallet!

KNOWN BUGS:
we appreciate creative fix suggestions:)