Well I took a look at that thread (the first and 107. page were enough) and at the official project site (
http://code.google.com/p/prs-plus/) and now I know more or less everything about this (so you can pretty much ignore my questions above).
I have to say Kartu, this is one impressive piece of work ! And all for free...
You probably already know this, but both the items from your impossible list (
http://code.google.com/p/prs-plus/wiki/FeatureRequests) have already been implemented in the 950.
I see you accept votes for requested features, so I'd like to put in my votes for options 3. and 4. from the high priority list (text search and standby timeout, I've wanted that ever since I got my PRS-505) and option 2. from the low priority list.
I noticed you implemented Sudoku, Mahjong and such. I don't really need games on my e-reader but I have a suggestion for a great game you could implement next (for other people to have fun). It fulfills all the requirements that I can imagine for a game on an e-reader : it doesn't require a quick display refresh rate (it could even benefit from the touchscreen and zoom functions), it has simple graphics, it would be simple to implement (you'd need to get the author's permission first, but that should be no problem since the game already has a free online version and author makes his money from the physical version), and it's for two players and very fun to play (2006. MENSA select too !) :
http://www.boardspace.net/english/about_hive.html
http://boardgamegeek.com/boardgame/2655/hive
Anyway, kudos to you for the effort...