<s>
RedBerry	B-Application
is	O
BlackBerry	B-Operating_System
's	O
competitor	O
in	O
China	O
.	O
</s>
<s>
Like	O
the	O
Research	O
in	O
Motion	O
(	O
RIM	O
)	O
technology	O
,	O
it	O
also	O
features	O
push	B-General_Concept
e-mail	I-General_Concept
service	I-General_Concept
through	O
a	O
low-cost	O
RedBerry	B-Application
package	O
.	O
</s>
<s>
RedBerry	B-Application
was	O
launched	O
by	O
China	O
Unicom	O
,	O
a	O
state-run	O
telecommunications	O
company	O
and	O
the	O
second	O
largest	O
in	O
China	O
.	O
</s>
<s>
It	O
was	O
announced	O
to	O
counter	O
the	O
announced	O
entry	O
of	O
RIM	O
's	O
(	O
Research	O
In	O
Motion	O
)	O
wireless	B-General_Concept
email	I-General_Concept
device	O
in	O
China	O
in	O
2006	O
.	O
</s>
<s>
RedBerry	B-Application
's	O
introduction	O
immediately	O
acknowledged	O
that	O
it	O
is	O
an	O
imitation	O
of	O
BlackBerry	B-Operating_System
,	O
citing	O
that	O
it	O
is	O
the	O
most	O
successful	O
application	O
of	O
push-email	O
service	O
.	O
</s>
<s>
In	O
a	O
statement	O
,	O
China	O
Unicom	O
said	O
that	O
the	O
"	O
RedBerry	B-Application
name	O
extends	O
the	O
vivid	O
name	O
of	O
Blackberry	B-Operating_System
that	O
people	O
are	O
already	O
familiar	O
with	O
"	O
while	O
adding	O
that	O
the	O
branding	O
also	O
integrated	O
the	O
red	O
symbol	O
of	O
China	O
Unicom	O
.	O
</s>
<s>
Upon	O
launch	O
,	O
RedBerry	B-Application
devices	O
were	O
sold	O
for	O
less	O
than	O
a	O
dollar	O
a	O
month	O
(	O
5	O
renminbi/	O
$0.62	O
)	O
per	O
month	O
and	O
charged	O
0.30	O
renminbi	O
for	O
each	O
email	O
sent	O
.	O
</s>
<s>
During	O
this	O
period	O
,	O
BlackBerry	B-Operating_System
users	O
in	O
Hong	O
Kong	O
paid	O
$64	O
for	O
unlimited	O
email	O
monthly	O
.	O
</s>
