4Pockets has released a great, multiplayer-capable Air Hockey clone Air Hockey Challenge

http://www.4pockets.com/product_info.php?p=77

It was some months ago that I’ve published a roundup of all Air Hockey clones on the Pocket PC. In the meantime, having seen the lack of a really up-to-date and, most importantly, multiplayer-capable Air Hockey clones, the excellent folks at 4Pockets have developed a really decent clone, which has just been released (therefore, the current, tested version is 1.0). There isn’t much to be said of the genre itself: if you’ve ever played an Air Hockey clone, you already know what it’s about. If you don’t know the genre, you’re strongly supposed to check out the demo – it’s really entertaining. Fortunately, the implementation of the game isn’t at all worse than the other, decent 4Pockets titles (see the Appendix for some of them). Availability, compatibility The game is available here and costs $14.95. There is a playable trial (which lets the players play some 1-2 minutes a game). It’s compatible with most devices I’ve tested it on (WM2003SE VGA Pocket Loox 720, WM2003 HP iPAQ 2210, WM5 HTC Wizard (2.26 ROM), WM5 VGA Dell Axim x51v (A12 ROM)). Unfortunately, it’s incompatible with both the WM5 (2.01 ROM) HP iPAQ hx4700 and pre-WM2003 (Pocket PC 2000 / 2002) devices. I've tested the title in all possible Bluetooth PAN and Wi-Fi peer-to-peer combinations (the former between Widcomm BT stack-based devices; the latter between Wi-Fi-capable ones) in multiplayer mode; I've never had any speed / lagging problems in either configuration. That is, it'll work just great in multiplayer mode, independent of your particular Pocket PC model. Of course, you may need to disable the particle effects if you play against/with a slower device because it'll cause considerable lag to both participants. Note that while the homepage states the game requires a 300 MHz XScale/StrongARM CPU, it’s perfectly playable on the 195 MHz OMAP HTC Wizard too if you disable the particle effects (you can do this on every game setup screen – NOT in the general preference settings!) Pros

1. Definitely better than any other Air Hockey clone on the Pocket PC, even Paul Ellams’ Air Hockey 3D. For example, particularly in Landscape, the screen estate is far better utilized than with the Paul Ellams game, which only uses a portion of the screen to render the board.
2. LAN-based (BT PAN & Wi-Fi P2P-compatible) Multiplayer, meaning compatibility with both all Widcomm/Broadcom Bluetooth-based and Wi-Fi-capable Pocket PC’s (unlike in other Pocket PC Air Hockey clones, which have absolutely no multiplayer support)
3. Good ambient sounds & effects (not stereo though)
4. As with all 4Pockets games and unlike all other Air Hockey clones, spectacular particle effects (must be turned off on slower devices like the HTC Wizard though)
5. Power-ups (unlike in other Pocket PC Air Hockey clones)
6. Playable on slower devices too
7. Selectable screen orientation: the presence of (selectable) Portrait mode is welcome news for devices having screens that (may) have polarization problems in Landscape mode (for example, the Dell Axim x50v/x51v)

Cons

1. No Bluetooth serial support any more, as opposed to 4Connect from the same company (bad news for Microsoft Bluetooth stack owners that don’t want to use Wi-Fi peer-to-peer connections to save battery life)
2. No Pocket PC 2002 support any more, as opposed to most previous titles (for example, Great Gold Rush or Harry Putter) from the same company
3. No in-game or menu music (unfortunately, most newer 4Pockets games lack this)
4. Considerably more expensive than even the so far best Air Hockey title Paul Ellams’ Air Hockey 3D (of course, much better too)
5. (No map editor, unlike in Paul Ellams’ Air Hockey 3D)

Verdict If you are looking for the best Air Hockey clone, particularly if you need multiplayer, go for this title. You won’t regret it, I'm pretty sure - this title lives up to the (high - 4Pockets has always produced quality titles) expectations. Appendix: other apps / games of 4Pockets worth mentioning Some other games and apps of the 4Pockets folks are 4Talk, a great walkie-talkie app; some really fine sound applications (AudioBox, PocketRTA (Pro), Auto Tuner), multiplayer games (4Connect; The Great Gold Rush) and some really great single player games, for example Super Elemental (one of the best color matching titles with really great in-game music and explosion effects), Particle Wars (a great vertical scroller; while not as good as SkyForce (Reloaded), I still heartily recommend it), Marble Worlds (a very good Marble (Gyroscope) clone), Harry Putter's Crazy Golf and some other titles. Also see the Roundup of All Pocket PC Games Part I for more information on some of these titles. UPDATE (09/25/2006): PPCT frontpage UPDATE (03/23/2007): Allen Gall's review