I merged all of these into one topic to make things a bit more manageable - no big deal, but usually it's best to create as few new topics as possible to make it easier for people to read all of your suggestions without having to go through half a dozen different links.
I've already covered a lot of this by e-mail, but just to put it out here:
English-to-Chinese flashcards have been requested by quite a few people and are definitely something we're thinking about for 2.0. Though there might not be very many testing options available for them, since our main focus will remain Chinese-to-English.
Character prediction isn't necessarily all that useful when you're looking up words in a dictionary (since often you'll be looking for one of the least common words that starts with that character), but I agree that embedding a mini Input Field into the handwriting input screen would streamline things. Though you can already get a lot of this functionality with the fullscreen handwriting input mode.
Wordnet seems to be stored in a less-than-straightforward format, but if we have time we'll certainly consider releasing a free English-English database. Though anyone who wanted to this could do it right now with
MakePlecoDict.
We've actually gotten a lot of requests for the ability to suspend / put on hold a flashcard session and return to it later; particularly important on Palm where you can only run one application at a time. So this is another thing on our 2.0 feature list.
Thanks for the kind words on the flashcard system - we're definitely planning to do more with layered complexity in the next version, ideally we'd like to have something more like SuperMemo where you can get a lot of the benefits of the more advanced features without having to actually understand how they work.
And you can already make it easy to reconfigure flags if you just choose "Flag List" in the "Extra info" menu in Test Settings - that will let you change the flags right from the main screen.
Thanks for all the great feedback!