You can store up to 1000 contacts in Metro XL. In addition, you can store up to 250 contacts in each of your sim card. So, if you are using 2 sim cards, in total you can store up to 1500 contacts.
No. This phone do not have wireless FM.
Yes, Metro XL does have speaker, which is located on the back side of the phone.
Yes, Samsung Metro XL does have dictionary.
Yes, Metro XL supports T9 type.