What to do whith an LCD from an Sony Ericson T100?

I found an Sony Ericson T100 Mobile phone on the street!

It had no SIM card and it was not working.It dosent let you enter the SIM code.so i got out my tools and tock it a part

I got:
-small speker
-small mic
-very small motor as an vibrator
-an dot matrix LCD
-An bord full of complicated SMD Chips (proboly the most useles thing i got from it)
-An loud piezo ringer
-An Litium batery
-...

I want to know if there is ANY use for the B/W LCD
On the back it ses:
MM13G04A 2C27
ARIMA DISPLAY CORP.
MADE IN TAIWAN

And the conactor has A a LOT of pins.About 35.
And how is it geting lighted in blue(there are no LEDs)