I, myself personally owns an LG P990 (popularly known as Optimus 2X). It has been a roller coaster ride hearing news from Update announcement in 2011, LG Canada making some ruckus by officially denying along other Optimus phones, ICS update, and now reconfirmation from LG Korea and LG Singapore.
I am one of those who had been itching to get the taste of ice cream sandwich on my Optimus 2X. So I had mine rooted and installed custom ROM (Self Kang). It is admittedly an incomplete ROM since it is in Beta version having some of bugs and glitches.
First of all, LG may not be the best at taking care and value customers when it comes to after sales services. Unlike LG, Samsung and HTC get their phones updated ahead other phone manufacturers. Now, customers would be thinking twice if they will buy an LG phone considering that there is a fast pace update from Google.
Still hoping for the update. (Fingers crossed)