Charley used to HATE tummy time. I still don't know if I'd go so far as to say she LIKES it now, but she tolerates it much better! And, the day before her 4 month birthday, she rolled over from her belly to her back!
Multitasking - tummy time while sucking on her hand!
It's the one time I willingly let her watch TV - anything to keep her distracted and on her stomach for as long as possible!