Discuss the development within mobile device forensic tools and suggest issues that need to be addressed to improve them.

The answer should include the following points:

Advanced features and capabilities in higher$-$end mobile devices

Lack of Unicode support, truncated entries, connectivity issues, acquisitions ending in errors, incorrect date$/$time stamps, inconsistencies between preview$-$pane data and generated reports, subscriber$-$related data not reported $($IMEI$,$ MSISDN$),$ deleted data acquisition, unsuccessful acquisition of Internet$-$related data and application$-$related data