<s>
Sendo	B-Operating_System
Z100	I-Operating_System
is	O
a	O
Tri-band	O
phone	O
by	O
Sendo	O
,	O
designed	O
in	O
2002	O
and	O
never	O
launched	O
as	O
Sendo	O
sued	O
Microsoft	O
.	O
</s>
<s>
After	O
Microsoft	O
bought	O
shares	O
of	O
Sendo	O
,	O
they	O
started	O
together	O
to	O
develop	O
the	O
new	O
devices	O
operating	B-General_Concept
system	I-General_Concept
called	O
Stinger	O
.	O
</s>
<s>
The	O
Sendo	B-Operating_System
Z100	I-Operating_System
was	O
the	O
first	O
prototype	O
implementation	O
of	O
the	O
renamed	O
operating	B-General_Concept
system	I-General_Concept
Smartphone	B-Operating_System
2002	I-Operating_System
presented	O
at	O
the	O
CeBIT	O
2002	O
.	O
</s>
<s>
Sendo	O
announced	O
that	O
the	O
Series	B-Language
60	I-Language
platform	I-Language
would	O
be	O
used	O
for	O
future	O
phones	O
.	O
</s>
