Hi.
i've found something that rather wasn't meant to work such way.
Browsing sms archive, or send smses, setting filter to name or part of msg, then after filling in date&time pressing tab moves focus to next displayed message which is nice - but on last displayed message tab moves focus to an unknown localization thus forcing user to change date to god knows what.
Also, interesting, annoying maybe just a little thing, is - when tabbing between date and time - focus is left on last edited parameter. Which is fine for date, yet can be confusing with multiple setting time, forcing user to input first hour next minutes, and in next message first minutes then hours...