I sent a note to the Microsoft Tag people about creating an app for the Playbook. I use the Tag Reader app on my 9700 all the time and it would be great to use on the larger PB screen. They replied:
Greetings,
Thank you for your suggestion to make available Microsoft tag reader for Blackberry Playbook. We have this in our idea box and has been forwarded to our operation team.
Please keep checking our website 2D Barcodes and Mobile Tagging | Microsoft Tag for regular updates.
If you have any questions, comments or suggestions, please let us know.
Thank you for your feedback and your interest in Microsoft Tag.
If you use the MS Tag reader, maybe you could send them a note too, just to establish that there's enough interest to make it worthwhile for them...