It is never too late. If you think some more about the bar code idea. These are actually couple more ideas related to this that you can expand and it will be even bigger than redlaser. For example, if you get the bar code for a book, it will display review and so you can determine whether to buy it or not. On the same line of thinking, you will find out that you can do even more once you "identify" the object by the bar code... email me. I am interested in building something similar.
I have a barcode scanner for Android that already does the book one. You scan an ISBN barcode, and it lets you immediately do a "Search inside this book".
I just went to email you, to discuss a few of the additional ideas we had in our original plan, see if there might be a way to differentiate it sufficiently from RedLaser and Google Goggles to make it work.
Unfortunately, I can't find your email address :-)