Think i'll plump for the next iPod update, expected in Sept. The reason for this is i see it likely that iPod will run iPhone flavour OS X and so there'll likely be new syncable items, or at least in-line with iPhone. Also expecting downloadable apps on iPod 6G OS X, so expect that to get enabled for iPhone simultaneously. Sure they may not end up sync notes with Tiger and limit that to Leopard, but for the most part i don't think they're waiting on Oct to provide new iPhone functionality.
M. 🙄