Sakai offers several tools where user can enter a text and ask for a search of users, sites, sections and so on. It would be useful to be able to use wildcards in this searches. For example, if you enter "Discussion % SMPL101", you'll get:
Discussion 1 SMPL101
Discussion 2 SMPL101
Discussion 3 SMPL101
Discussion 4 SMPL101
Or, if an i18n enviroment you write %iménez, you'll get Jiménez and Giménez (in Spanish both forms are correct).