My girlfriend just got her iPhone4s and wanted a new music dock so that she can listen to music in the kitchen. I decided to get her the Julius Dance Machine because its from Speakercraft and because its Julius! Either reason is good enough but combined they made it a no brainer :).
It arrived just in time… her phone battery was almost dead and she was able to use it to charge up. She said it sounds great and the rechargeable battery lets her move it around the apartment wirelessly.