Thanks for reporting this. I have verified the problem on E71's latest software release 510.21.009. This is a bug.
From what I see however, there are no planned software releases, that could provide a fix for this problem.
To some extend you could display correctly your text if you added it in a non modifiable TextField as follows:
and then append text and text2 to your form.
String s2="ادخل الاسم";
TextField text=new TextField("",s,20,TextField.UNEDITABLE);
TextField text2=new TextField("",s2,20,TextField.UNEDITABLE);