I heard this somewhere else. Supposedly, those strange "plant" things with the sqare things on them are not Poroks, but in fact TMs. It was also said that you can plant TM's you already own into the dirt and cultivate them, hence solving the problem of TM availability. Don't go and plant TM29 just yet though-- ROM users will not be able to get them back because of the frozen time issue. TMs need time to grow and may likely take a day or two. It's really cool though, seems like an excellent feature to me.