Shinybow originally was going to release it's converter on 6/30/10 but set the date back to 11/30/10. It wasn't released then either. The last time i visited their website it wasn't shown at all, so i guess it won't be released anytime soon,if ever.
There are other converters though. I bought mine from Atlona Technologies,it has a built in "feature" that is a little annoying,but the PQ is exellent,and has an HD passthru which i like a lot,and use every day.
There is also one from Audio Authority that member "kjbawc" can tell you about. Then there is the el-cheapo Lenkeng converter that you can buy from MP. It doesn't have a passthru,and your PQ may or may not be to your liking,but some people swear by them...others swear AT them,really the only thing it has going for it is that it is CHEAP $45.00+/- but, AFAIK has no manufacturers warranty at all,but MP will return your $$ if you aren't happy with it if it's returned within 30 days and, (if you wait long enough, you might be able to get one free as a prize in a Capt.Crunch cereal box,or a CrackerJacks box!!(just kidding)). There is also the Ambrey converter,dunno anything about it except it only has a 6mo. warranty and has the same built-in "feature" as the Atlona converter,costs $209.00,and has an HD passthru.There is also the Apple tv converter,it accepts 480i,and costs $199.00. Some of these converters will not accept a 480i signal,some will. My Atlona will accept 480p,720p,and 1080i but not 480i,which to me is a non-issue.The Atlona converter carries a 3yr.repair or replace warranty. I bought mine from a reseller at Amazon.If i remember right,it cost me about $212.00+/- incl. shipping. It's normal retail price is $279.00. G.