diff --git a/IPython/core/interactiveshell.py b/IPython/core/interactiveshell.py
index e8f4aee..c4196a3 100644
--- a/IPython/core/interactiveshell.py
+++ b/IPython/core/interactiveshell.py
@@ -2224,52 +2224,6 @@ class InteractiveShell(Configurable, Magic):
 
         return False
     
-    
-    # PENDING REMOVAL: this method is slated for deletion, once our new
-    # input logic has been 100% moved to frontends and is stable.
-    def runlines(self, lines, clean=False):
-        """Run a string of one or more lines of source.
-
-        This method is capable of running a string containing multiple source
-        lines, as if they had been entered at the IPython prompt.  Since it
-        exposes IPython's processing machinery, the given strings can contain
-        magic calls (%magic), special shell access (!cmd), etc.
-        """
-        
-        if not isinstance(lines, (list, tuple)):
-            lines = lines.splitlines()
-
-        if clean:
-            lines = self._cleanup_ipy_script(lines)
-
-        # We must start with a clean buffer, in case this is run from an
-        # interactive IPython session (via a magic, for example).
-        self.reset_buffer()
-
-        # Since we will prefilter all lines, store the user's raw input too
-        # before we apply any transformations
-        self.buffer_raw[:] = [ l+'\n' for l in lines]
-        
-        more = False
-        prefilter_lines = self.prefilter_manager.prefilter_lines
-        with nested(self.builtin_trap, self.display_trap):
-            for line in lines:
-                # skip blank lines so we don't mess up the prompt counter, but
-                # do NOT skip even a blank line if we are in a code block (more
-                # is true)
-            
-                if line or more:
-                    more = self.push_line(prefilter_lines(line, more))
-                    # IPython's run_source returns None if there was an error
-                    # compiling the code.  This allows us to stop processing
-                    # right away, so the user gets the error message at the
-                    # right place.
-                    if more is None:
-                        break
-            # final newline in case the input didn't have it, so that the code
-            # actually does get executed
-            if more:
-                self.push_line('\n')
 
     def run_source(self, source, filename=None, symbol='single'):
         """Compile and run some source in the interpreter.
diff --git a/IPython/core/tests/test_iplib.py b/IPython/core/tests/test_iplib.py
index 0f290ee..cb91ab2 100644
--- a/IPython/core/tests/test_iplib.py
+++ b/IPython/core/tests/test_iplib.py
@@ -237,10 +237,10 @@ SystemExit: (2, u'Mode = exit')
     """
 
 
-def test_runlines():
+def test_run_cell():
     import textwrap
-    ip.runlines(['a = 10', 'a+=1'])
-    ip.runlines('assert a == 11\nassert 1')
+    ip.run_cell('a = 10\na+=1')
+    ip.run_cell('assert a == 11\nassert 1')
 
     nt.assert_equals(ip.user_ns['a'], 11)
     complex = textwrap.dedent("""
@@ -260,7 +260,7 @@ def test_runlines():
     
     """)
     # Simply verifies that this kind of input is run
-    ip.runlines(complex)
+    ip.run_cell(complex)
     
 
 def test_db():
diff --git a/IPython/core/tests/test_run.py b/IPython/core/tests/test_run.py
index 16be332..159a2f1 100644
--- a/IPython/core/tests/test_run.py
+++ b/IPython/core/tests/test_run.py
@@ -151,7 +151,7 @@ class TestMagicRunSimple(tt.TempFileMixin):
                "def f(): return foo()")
         self.mktmp(src)
         _ip.magic('run %s' % self.fname)
-        _ip.runlines('t = isinstance(f(), foo)')
+        _ip.run_cell('t = isinstance(f(), foo)')
         nt.assert_true(_ip.user_ns['t'])
 
     # We have to skip these in win32 because getoutputerr() crashes,
@@ -188,7 +188,7 @@ class TestMagicRunSimple(tt.TempFileMixin):
                "       print i;break\n" % empty.fname)
         self.mktmp(src)
         _ip.magic('run %s' % self.fname)
-        _ip.runlines('ip == get_ipython()')
+        _ip.run_cell('ip == get_ipython()')
         tt.assert_equals(_ip.user_ns['i'], 5)
 
     @dec.skip_win32
diff --git a/IPython/zmq/ipkernel.py b/IPython/zmq/ipkernel.py
index 9e0d781..95e676b 100755
--- a/IPython/zmq/ipkernel.py
+++ b/IPython/zmq/ipkernel.py
@@ -241,7 +241,7 @@ class Kernel(Configurable):
         except:
             status = u'error'
             # FIXME: this code right now isn't being used yet by default,
-            # because the runlines() call above directly fires off exception
+            # because the run_cell() call above directly fires off exception
             # reporting.  This code, therefore, is only active in the scenario
             # where runlines itself has an unhandled exception.  We need to
             # uniformize this, for all exception construction to come from a