Today, Palm is expected to launch its very, very long awaited wireless i705 handheld, reports the San Jose Mercury News. Actually, it went on sale last Thursday. However, it's a somewhat limited device in that it does not do voice calls. Like the RIM Blackberry, it uses the Mobitex data network. Nor is the service cheap at $39.99 a month. Users who want a PDA with built in GSM or similar mobile phone capabilities can turn to Palm-based machines from Samsung and Kyocera, or Handspring's small, good-looking Treo, or at least two PocketPCs (Sagem and Trium both had models on sale in Europe last year).