diff -r dee5afe5301f -r 3f74d0d4af4c src/gui/kernel/qguifunctions_wince.cpp
--- a/src/gui/kernel/qguifunctions_wince.cpp	Mon Mar 15 12:43:09 2010 +0200
+++ b/src/gui/kernel/qguifunctions_wince.cpp	Thu Apr 08 14:19:33 2010 +0300
@@ -278,7 +278,14 @@
 
 bool qt_wince_is_windows_mobile_65()
 {
-    return ((qt_wince_get_version() == 52) && (qt_wince_get_build() > 2000));
+    const DWORD dwFirstWM65BuildNumber = 21139;
+    OSVERSIONINFO osvi;
+    osvi.dwOSVersionInfoSize = sizeof(osvi);
+    if (!GetVersionEx(&osvi))
+        return false;
+    return osvi.dwMajorVersion > 5
+        || (osvi.dwMajorVersion == 5 && (osvi.dwMinorVersion > 2 ||
+            (osvi.dwMinorVersion == 2 && osvi.dwBuildNumber >= dwFirstWM65BuildNumber)));
 }
 
 bool qt_wince_is_pocket_pc() {