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    <p>A couple things I should mention since I work on a wireless network in Canada. Try and keep any images small (or even non existent) to increase load times and reduce data charges. On our network, if the user is not subscribed to a plan, our network charges $15/mb. Some unoptimized images a phone tries to download could easily cost the user, and those large images won't look good anyways. </p> <p>I know it doesn't affect you, but if you use any other protocols, such as streaming, or any UDP based protocols, set the Maximum Packet Size to atleast 1300 bytes or lower. Just because of the way a mobile works as it's moves around the network, extra header information get's added. With TCP/IP we use MSS-clamping to protect against large packet issues, but this cannot be applied to any UDP transmissions, or anything secure protocol that uses an Authentication Header. If the mobiles you are targetting are offered by RIM, this point can be ignored completely.</p> <p>Some mobiles may use a WAP proxy when talking to you're server, if this is a case, try avoiding using any connections that require a keep-alive TCP/IP. Some proxies are set to not allow any keep-alive sessions go through them, even though I beleive most of the new ones are fine. </p> <p>I'm sure there is more, the most important thing you should keep in you're mind that the IP connectivity to the mobile is alot more complex then someone opening up a web browser. This transport can be extremely tricky, so if you try to do something really fancy, even if it works now, it may not always work. Also one last quick point, the latency and packet loss can fluctuate wildly, so if you're doing anything real-time, you latency could hit 200+ms, and I've seen packet loss spike to 20-30% levels for short times.</p> <p>Good Luck, and if you have any specific questions, be sure to ask them.</p>
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