Gavin Andresen - 2010-08-14 13:46:17

It's too soon to start junking up the API for backward compatibility at all costs.
Just return "<txid>".
You'll never hear me argue with "keep it simple." 

Patch for that is trivial:
Code:
diff --git a/rpc.cpp b/rpc.cpp
index 920fe90..35a336f 100644
--- a/rpc.cpp
+++ b/rpc.cpp
@@ -364,7 +364,7 @@ Value sendtoaddress(const Array& params, bool fHelp)
     string strError = SendMoneyToBitcoinAddress(strAddress, nAmount, wtx);
     if (strError != "")
         throw runtime_error(strError);
-    return "sent";
+    return wtx.GetHash().ToString();
 }