From TealPoint Software:
Free up memory and make the most of external expansion cards with TealAlias shortcuts. Placeholder 'Alias' files automatically find, load, and launch apps and data from external SD cards, increasing available main memory. Similar to Windows "shortcuts" or MacOS "aliases", TealAlias aliases take up very little space, and can free up main memory by loading both apps and their data files from VFS-compatible external cards only when needed. TealAlias can also be used to add card support to launchers or programs which require their data be resident in main memory, or to allow card-based applications to be placed in launcher categories. Lastly, TealAlias can be used to provide icon and launcher support to individual document files, automatically launching supporting applications to open up specific documents with a single tap. TealAlias is PalmOS 5 compatible, and supports both Sony and Palm full screen and landscape (rotated display) modes.