软件及 替换旧手持式应用程序的硬件选项
然后我开始寻找较新的 Psion 手持型号，但它们价格昂贵且 充满了我根本不需要的功能（彩色屏幕、条形码阅读器……）。 还， 它们看起来比我实际使用的 Workabout mx 不那么坚固。 我不得不更换 大约 50 台手持设备，我正在寻找具有以下功能的良好选择：
- 价格合理
- 快速数字数据输入，可选字母数字数据（不常见）
- 可读屏幕，至少 7 行文本可见。 无需颜色
- 提供坚固耐用的
- 替换部件
- 合理的开发环境（手持模拟器、IDE、最小 GUI 支持、PC/手持设备连接）
也许支持 Java 的旧手机可以完成这项工作？
请注明建议的设备型号及其可用的开发选项。
提前致谢
I'm looking for options to replace and old application running in a Psion Workabout mx handheld, developed in OPL.
The handheld and the application (developed more than 10 years ago) are both working fine
by now, but the device is discontinued, and each time is harder to find replacement parts for it.
Then I started to look to the newer Psion handheld models, but they are expensive and
filled with features that I don't need at all (color screen, barcode reader, ...). Also,
they look a lot less rugged than the actual Workabout mx that I'm using. I had to replace
around 50 handhelds, and i'm looking for good options with this features:
- Reasonable priced
- Fast numeric data entry, optionally alphanumeric data (not usual)
- Readable screen, with at least 7 lines of text visible. No color needed
- Rugged
- Replacement parts available
- Reasonable development environment (handheld emulator, IDE, minimal GUI support, PC / handheld connectivity)
Maybe an old mobile phone with Java support can do the work?
Please indicate the suggested device model and the development options available for it.
Thanks in advance
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也许康柏 ipaqs 可能是合适的替代品，但我不确定他们是否还会生产这些产品。
我也在想 iPod iTouch（认真的建议！）可能是一个不错的设备（最便宜的版本 165 英镑）它是一个很好的开发环境（Objective-C，免费编译器下载，尽管你可能需要向苹果注册才能获取您的应用程序的证书，以便它可以在设备上运行）。 这可能太贵了，并且远远超出了您正在寻找的要求。
如果您正在考虑启用 Java 的手机（我不确定您的性能要求是什么，但如果它是 10 年前的应用程序的端口，听起来相当小），您要小心，一些移动 Java 实现不会'如果不直接支持浮点运算，您可能需要实现一个定点数学库。 有些手机 Java VM 的性能差异也很大，这可能不是您主要关心的问题。 如果您假设您的场外工程师都拥有公司电话，那么移动电话开发路线可能是一种有效的路线！
Perhaps a compaq ipaqs may be suitable replacements, but I'm not sure they make those anymore.
I was also thinking an iPod iTouch (serious suggestion!) may be a good device to get (cheapest version £165) Its a good development environment (Objective-C, free compiler download, although you'll probably have to register with apple to get your apps. a certificate so it works on the device). This may be too expensive, and far above the requirements you're looking for.
If you're thinking about java enabled phones (I'm not sure what you're performance requirements are, but sounds quite minimal if its a port of a 10 year old app) you want to be careful, some mobile java implementations won't support floating point arithmetic directly, you may have to implement a fixed point math library. Somes phone Java VMs vary quite dramatically performance wise too, again this may not be your primary concern. The mobile phone development route may be a valid one, if you're assuming that your off-site engineers all have company phones anyway!