Items in Spirit Tracks
Items
Inventory Items
The Whirlwind seems to be an item that is similar to the Gust Jar in use and the Deku Leaf in appearence. It is used to blow certain objects, work different switches and stun different enemies.
The boomerang is never used in the trailer for Spirit Tracks, but it is seen equipped, so it can be assumed as an item that will appear in Spirit Tracks. It is assumed that it will work the same as the boomerang did in Phantom Hourglass.
The whip is a brand new item to the series seen in the 2009 E3 trailer for Spirit Tracks. Link is seen killing a Yellow Chu-Chu with the whip and using the whip to swing across a gap, similar to the use of the Grappling Hook in The Wind Waker.
It can be assumed that there will be Bombs or Cannons up for sale for the fact that there is a Cannon on Link's train, and other Legend of Zelda titles which have featured Cannons have been this way. However, this has not been confirmed and should be regarded as only a logical guess.