Support for keyboard shortcuts has finally arrived. Pressing the ? key will display a window with the list of supported keys. Shift isn't needed when selecting the ? key.
If you have used FeedsAnywhere with a mouse you are already familiar with the slight black bar that appears to the left of the item's title on a mouseover. This indicates that the item has been selected and its keyboard shortcuts are active. You don't have to use a mouse to select an item though, using any of the next (j and n) or previous keys (k and p) will select the first or last item respectively if none are already selected.
In addition to navigating between items and acting upon them there are also commands for moving between pages, opening menus, and changing the font sizes.