I have an Eris on Cricket. Had it about 3 weeks. some apps are quirky in terms of connecting but the weird thing is I can receive mms no problem just cant receive them. If you disable the mobile network and open messages you can access the settings for mms. they are not greyed out and changeable. As far as them sticking I doubt it but like I said I can receive pics just cant send them. Just set name to cricket mms, MMSC: http://mms.mycricket.com.servlets/mms(basically replace vtext with mycricket), I made mms proxy 8080 and left port blank.