Email messages. Working with emails is similar on the two tablets: Both use the large screen to provide common controls at all times, and when in landscape orientation, both let you see a selected email without opening it. On the TouchPad, you can choose which of those three panes is visible when in portrait orientation, so you can view the list of emails and the message preview, or you can check out the list of mailboxes, folders, and messages. On the iPad 2, when in portrait orientation, you view just the list of emails and the preview; the list of accounts and mailboxes displays as a pop-over menu only when selected. I don't think either approach is superior to the other.
The TouchPad's account and folder list shows fewer entries than the iPad 2's counterpart, so it's more work to find folders. But you can see all your accounts in one list on the TouchPad, as well as hide and show individual accounts in that list, whereas the iPad 2 makes you switch accounts and thus shows only one account's folders at a time.
In both devices, you can reply, forward, mark as unread, delete, and move messages while reading them. You can also delete and move emails to folders from the message lists.
On the iPad 2, you can easily delete individual messages from the email list: Swipe to the left or right and tap Delete. The TouchPad copies that approach, though once the Delete button is visible, you must tap it or Cancel. By contrast, on the iPad 2 you can tap somewhere else to close the Delete button, and there's less interruption and no risk of tapping Delete instead of Cancel.
To move selected messages, tap the Move to Folder button and select the destination folder. Moving messages is easier on the iPad because it uses your entire accounts and folder pane in landscape orientation and presents a long pop-over list in portrait orientation. The TouchPad in both orientations opens a small dialog box that you have to scroll through, adding effort to the operation. (Neither tablet lets you simply drag messages to a folder, as the Samsung Galaxy Tab 10.1 can.)
The iPad 2 displays the search box at the top of the message list for the current account and lets you constrain your search to the To, From, or Subject fields. The TouchPad has a search box in the same location, but it has no options for constraining the search. It also displays odd behavior: If you enter a name in the field, even something as simple as "Ken," the TouchPad searches the From fields only, but if you enter other text, it searches the text and subject lines as well. Thus, you can't find emails on the TouchPad about a person who was not a recipient of the email. In addition, the TouchPad can search only email residing on it; there is no option to search the server as well, as in the iPad 2.