
Quick note: Nokia Mobile Codes beta adds support for creating QR codes, in addition to Data Matrix.
I believe these two are the main alternatives to emerge as de-facto standards for 2D barcodes. Nokia barcode reader is able to read both.
Bonus links: Data Matrix and QR Code on Wikipedia.

Having problems with your device, or with connecting it with your PC? Or would you just be interested to explore what your device is truly made of? Go and download Nokia Device Status 1.1
Nokia Device Status is a self-diagnosis tool that allows you to collect detailed system information both from your PC and your S60 device. Your current device configuration and phone settings are presented in a detailed summary, which you can use to determine the exact cause, if you run into problems.
Device Status 1.1 is the first public release of this piece of software. Technically it’s quite mature, but as a concept still under development. Right now, the development team is evaluating different options how to make it useful for mainstream users, and how to integrate it effectively with customer care systems.
Share your thoughts!
The team very much wants to hear your feedback. How do you like it? Where would you like to use it - are there some unexpected use cases that we haven’t fully grasped? Is there some additional information you would need collected? And of course, please tell us if you find any bugs such as information you believe to be incorrect.
As always, write you thoughts either privately to the Device Status feedback form, or publicly to the comments section of this post.
Thanks everyone!!

I took the pic last week and uploaded it to Flickr with Share Online 3.0. Click the image to see the resulting page.
Let me introduce the latest version of our fancy media sharing app: Share Online 3.0.
Key features:

Go try it and tell us what you think!
Download here.
How do you like it? How could we improve it? What is great, what should be improved, what should be abandoned?
Write your thoughts either (a) to the feedback form or (b) to the comments section of this post. As always, the R&D team is listening.
Note: at this point, the R&D team wanted to highlight only N73 and N95 as compatible devices, and only Flickr as compatible service. Other devices and services work too - but be prepared for possible glitches here and there.

Folks, I need some help. Our Chief Technology Officer Tero Ojanperä would be willing to promote beta culture and Nokia Beta Labs in a big event this month.
Would you want to be a part of his show?
If so, please write below short testimonials: what do you think about Nokia Beta Labs? Why do you like it? Why would you recommend it to your friends or co-workers? What is the greatest thing about it?
Two rules: (1) write authentically as your true self, and (2) keep it short.
I’ll forward the best 10 testimonials directly to Mr.Ojanperä and the people helping him with the slides. No guarantees about will they use these at the presentation. It’s their call.
Of course, you can also write what you hate about beta labs, that’s good input for us too. But for Mr.Ojanperä’s presentation, we need some happy customers