I have seen an acquaintance using the LG Stylo 3 and really like the way it looks and the stylus capability. It is just the right size for my hand and I plan to purchase one used. I'm not very keen on using it for a phone, but would love to use it as a pda, and maybe in the future activate it with tracfone. My question is, can this be used as just a pda with wifi without any sim card ? Can apps be side-loaded ? And, can a phone presently locked/unlocked from another carrier be eventually used with tracfone ? Thanks in advance.