It was pointed out to me that "Elliptical trainer's" are not in the database. They have now been added. If a exercise/activity that you do is not in the Fitness Log's database let me know and I will add it in.
In relation to this a future feature I have in mind is the ability for users to add in there own activities. But I am still have a bit to do before I get to this.
As always if you have any requests, comments or suggestions feel free to send a message